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SDLRC - Diamond - Synthetics


The Sheahan Diamond Literature Reference Compilation - Scientific and Media Articles based on Major Keyword - Diamond - Synthetics
The Sheahan Diamond Literature Reference Compilation is compiled by Patricia Sheahan who publishes on a monthly basis a list of new scientific articles related to diamonds as well as media coverage and corporate announcements called the Sheahan Diamond Literature Service that is distributed as a free pdf to a list of followers. Pat has kindly agreed to allow her work to be made available as an online digital resource at Kaiser Research Online so that a broader community interested in diamonds and related geology can benefit. The references are for personal use information purposes only; when available a link is provided to an online location where the full article can be accessed or purchased directly. Reproduction of this compilation in part or in whole without permission from the Sheahan Diamond Literature Service is strictly prohibited. Return to Diamond Keyword Index
Sheahan Diamond Literature Reference Compilation - Scientific Articles by Author for all years
A-An Ao+ B-Bd Be-Bk Bl-Bq Br+ C-Cg Ch-Ck Cl+ D-Dd De-Dn Do+ E F-Fn Fo+ G-Gh Gi-Gq Gr+ H-Hd He-Hn Ho+ I J K-Kg Kh-Kn Ko-Kq Kr+ L-Lh
Li+ M-Maq Mar-Mc Md-Mn Mo+ N O P-Pd Pe-Pn Po+ Q R-Rh Ri-Rn Ro+ S-Sd Se-Sh Si-Sm Sn-Ss St+ T-Th Ti+ U V W-Wg Wh+ X Y Z
Sheahan Diamond Literature Reference Compilation - Media/Corporate References by Name for all years
A B C D-Diam Diamonds Diamr+ E F G H I J K L M N O P Q R S T U V W X Y Z
Each article reference in the SDLRC is tagged with one or more key words assigned by Pat Sheahan to highlight the main topics of the article. In an effort to make it easier for users to track down articles related to a specific topic, KRO has extracted these key words and developed a list of major key words presented in this Key Word Index to which individual key words used in the article reference have been assigned. In most of the individual Key Word Reports the references are in crhonological order, though in some such as Deposits the order is first by key word and then chronological. Only articles classified as "technical" (mainly scientific journal articles) and "media" (independent media articles) are included in the Key Word Index. References that were added in the most recent monthly update are highlighted in yellow.

Diamond - Synthetics articles deal with the above-ground production of diamonds from a carbon source using high temperature high pressure or chemical vapor deposition methods. The scientific articles deal with the mechanics of synthetic diamonds, whereas media articles deal with the market implications for natural diamonds versus synthetic diamonds.

Diamond - Synthetics
Posted/
Published
AuthorTitleSourceRegionKeywords
DS1860-0029
1866
Chancourtois, E.B.De.Sur la Production Naturelle et Artificiel de DiamantAcademy of Science (PARIS) C.R., PP. 22-25. ALSO: PARIS: LES MONDES, P. 438. ALSO: American JOURGlobalDiamond Synthesis, Mineral Resources
DS1860-0338
1880
Hannay, J.B.Artificial Diamonds. #1Nature., Vol. 22, PP. 225-257.GlobalDiamond Synthesis
DS1860-0946
1896
Lacroix, A.Diamant, 1896Mineralogie de la France et des Colonies, pp. 354-6.Africa, AlgeriaDiamond Synthesis
DS1860-0342
1880
Maskelyne, N.S.The Asserted Artificial Production of the DiamondNature., Vol. 21, PP. 203-204.GlobalSynthetic
DS1860-0416
1883
Maskelyne, N.S.Artficial DiamondsNature., Vol. 21, P. 260. ALSO: SOC. ARTS Journal of, Vol. 28, P. 289.GlobalSynthetic
DS1860-0417
1883
Maskelyne, N.S.The Supposed Artificial Production of the DiamondChem. News, Vol. 41, PP. 4-5.GlobalSynthetic
DS1860-0853
1894
Moissan, H.Nouvelles Experiences sur la Reproduction du DiamantAcademy of Science (PARIS), C.R., Vol. 117, PP. 320-326.GlobalSynthetics
DS1860-0328
1880
NatureThe Artificial Production of DiamondNature., Vol. 22, PP. 404-421.GlobalSynthetics
DS1900-0655
1908
Crookes, W.SIR.Artificial Diamonds. #2Knowledge., Vol. 5, PP. 26-28.GlobalDiamond Synthesis
DS1900-0751
1909
Futrelle, J.The Diamond MastersIndianapolis: Bobbs-merrill, 212P.GlobalKimberley, Fiction, Synthetic
DS1900-0322
1905
Handmann, P.R.Der Diamant, das Vorkommen und die Entstehung Sowie die Kunstliche Erzeugung des Diamants.Natur Und Kultur, Zeitschr. Fur Schule Und Leben., JAHR. 2, PP. 486-488.GlobalGeology, Diamond Occurrences, Diamond Genesis, Synthesis
DS1900-0612
1908
KnowledgeArtificial Diamonds ... Sir W. Crookes ExperimentsKnowledge (London), Vol. 5, PP. 26-28.GlobalSynthesis
DS1900-0197
1903
Kunz, G.F.Precious Stones: Diamonds - Kunz 1902 Part 2Mineral Resources of The United States For 1902: Part 2, Non, PP. 813-863.GlobalDrill Diamonds, Meteoritic, Synthesis, Irradiation
DS1900-0334
1905
Kunz, G.F.Diamonds; the Mineral Industry During 1904The Mineral Industry During 1904, Vol.United States, Arizona, Colorado PlateauGenesis, Origin, Synthetic
DS1900-0345
1905
Moissan, F.F.H.Nouvelles Recherches sur la Reproduction the du DiamantParis: Extrait Des Annual De Chem. Phys. 8th. Ser., Vol. 5, JUNE, 34P.GlobalDiamond Synthesis, Kimberley
DS1900-0068
1901
Moissan, H.Sur Quelques Experiences Nouvelles Relatives a la Preparation du Diamant.Academy of Science (PARIS) C.R., Vol. 133, PP. 206-210.GlobalCrystallography, Synthesis
DS1900-0613
1908
NatureArtificial Diamonds. #3Nature., Vol. 78, P. 177.GlobalSynthesis
DM1910-0641
1918
Parsons, C.A.The Formation of DiamondMining Magazine (London), JUNE, PP. 280-281.GlobalDiamond Synthesis
DS1920-0068
1921
Ennis, J.The Origin of the Diamond (1921)Mining Engineering Journal of South Africa, Vol. 32, PT. 2, Nov. 2ND. PP. 359-361; Vol. 31, PT. 1, Nov.South AfricaDiamond Genesis, Synthesis
DS1930-0102
1932
Blank, E.W.The Synthesis of the DiamondRocks And Minerals, Vol. 7, P. 143.GlobalSynthetic Diamond
DS1960-0126
1961
Bovenkerk, H.P.Some Observations on the Morphology and Physical Characteristics of Synthetic Diamond.American MINERALOGIST., Vol. 46, No. 7-8, PP. 952-963.GlobalKimberlite, Synthetic
DS1960-0736
1966
Ringwood, A.E., Major, A.Synthesis of DiamondsAust. Journal of Chem., Vol. 19, No. 10, PP. 1965-1969.AustraliaSynthetic Diamonds
DS1970-0625
1973
Arem, J.E.Man Made CrystalsWashington: Smithsonian Institute Press, 109P.GlobalKimberlite, Synthetic, Kimberley, Diamond
DS1970-0855
1973
Woods, G.S.Macro and Microscopic Defects in Synthetic Diamonds - a ReviewDiamond Research, pp. 25-27.GlobalDiamond Synthesis
DS1975-0823
1978
Nassau, K., Nassau, J.The History and Present Status of Synthetic Diamond. Part IiLapidary Journal, Vol. 32, No. 2, MAY PP. 490-508.United StatesSynthetic Diamonds
DS1975-0612
1977
Schumann, W.Gemstones of the WorldNew York: Sterling Publishing Or Nag Press, 256P.GlobalGemology, Kimberley, History, Synthetics
DS1980-0132
1980
Fu huifang, et al.Morphological Pecularities of Synthetic Diamond and a Preliminary Discussion on its Fine Crystal Growth Field.Geochimica., No. 1, PP. 23-30.ChinaDiamond Synthesis
DS1980-0204
1980
Kuge, S., Koizumi, M., Miyamoto, Y., Takubo, H., Kume, S.Synthesis of Prismatic and Tabular Diamond CrystalsMineralogical Magazine., Vol. 43, PP. 579-581.GlobalResearch, Diamond Morphology, Synthetic
DM1981-0489
1981
Collings, J.New Frontiers in Diamond SynthesisOptima, Vol. 30, No. 2, pp.100-11.GlobalDiamond Synthesis
DS1982-0082
1982
Bakon, A., Szymanski, A.Morphological Qualitative Classification of Synthetic Diamond Microcrystals.Mineral. Polonica., Vol. 13, No. 2, PP. 61-68.GlobalDiamond Synthesis
DS1982-0149
1982
Collins, A.T., Spear, P.M.Optically Active Nickel in Synthetic DiamondJournal of Physics, Sect. D. Applied Physics, Vol. 15, No. 12, PP. L183-L187.GlobalSynthetic Diamond, Geochemistry, Spectra Absorption
DS1982-0182
1982
Eash, D.M.International Gemological Symposium : Proceedings 1982Gemological Institute of America, Santa Monica, CA, 568P.GlobalDiamonds, Genesis, Sources, Synthetics, Coloured Stones, Production
DS1982-0247
1982
Harding, R.R.Production and Identification of Synthetic GemstonesInstitute of Mining and Metallurgy. Transactions, Vol. 91, SECT. A., PP. 130-131.GlobalDiamond Synthesis
DS1982-0279
1982
Hobbs, J.Detecting Diamond SimulantsIn: International Gemological Symposium Proceedings Volume, PP. 123-140.GlobalSynthetic, Kimberlite
DS1982-0585
1982
Strong, H.M.Synthesis of Gem Quality DiamondIn: International Gemological Symposium Proceedings Volume, PP. 51-60.GlobalSynthetic, Kimberlite
DS1982-0587
1982
Sunagawa, I.Gem Materials, Natural and ArtificialCurrent Topics In Material Science, Publishing North Holland Pub., Vol. No. 10, 144P.GlobalDiamond, Synthetic
DS1982-0630
1982
Welch, R.H.The Role of Synthetic Diamonds in DrillingMining Engineering Journal of South Africa, Vol. 93, No. 41, Jan. PP. 26-35.South AfricaDiamond Synthesis, Mining
DM1983-0744
1983
Anon.Watching Diamonds GrowThe Times, AUGUST 10TH.GlobalDiamond Synthesis, Harwell
DM1983-0762
1983
Anon.Grow Your OwnFinancial Times, OCTOBER 4TH.GlobalSynthetic Diamonds
DM1983-0763
1983
Anon.Growing GemsDiamond News And South African Jeweller., Vol. 46, No. 12, SEPTEMBER P. 45.GlobalSynthetic Diamonds
DS1983-0315
1983
Houghton, J.Science in ActionTellex Report; Internal Bpi From Bbc World., BPI No. TMO336, No. 1715 AUGUST 12TH. 3P.GlobalHistory, Diamonds, Synthesis
DS1983-0477
1983
Nelson, R., Hudson, J.A., Mazey, D.J., Piller, R.C.Diamond Synthesis; Internal Growth During Carbon Ion ImplantationRoyal Soc. London Proceedings, Series A., Vol. 386, No. 1790, PP. 211-222.GlobalSynthesis
DS1984-0250
1984
Dyer, H.De Beers Diamond Synthesis 25th. Anniversary 1959-1984Indiaqua., No. 39, 1984/III, PP. 11-15.South AfricaDiamond Synthesis
DS1984-0281
1984
Frankkamenetskii, D.A.The Theory and Growth of Unstable Phases and the Problem Of synthesis of Diamonds.Khim. Fiz., Vol. 3, No. 3, PP. 318-331.RussiaDiamond Synthesis
DS1984-0419
1984
Koivula, J.I., Fryer, C.W.Identifying Gem Quality Synthetic Diamonds: an UpdateGems And Gemology, Vol. 20, No. 3, FALL PP. 146-158.GlobalSynthetic
DS1984-0604
1984
Recker, K.Synthetische DiamantentZeitschrift Der Deutschen Gemmologischen Gesellschaft., Vol. 33, No. 1-2, PP. 5-34.GlobalSynthetic
DS1984-0617
1984
Rossman, G., Kirschvink, J.L.Magnetic Properties of Gem Quality Synthetic DiamondsGems And Gemology, Vol. 20, No. 3, FALL PP. 163-166.GlobalSynthetic
DS1984-0753
1984
Wakatsuki, M.Synthesis Researches of DiamondIn: Material Science of the Earth's Interior Terra Science Publishing, pp. 351-374GlobalDiamond Morphology, Synthetic
DS1985-0419
1985
Martovitskiy, V.P., Zadnerprovskiy, B.I., Bulenko, N.A.The internal structure of synthetic diamonds with thread likeinclusions.(Russian)Kristallografiya, (Russian), Vol. 30, No. 6, pp. 1203-1206RussiaSynthetic Diamonds, Diamond Morphology
DS1985-0596
1985
Sebba, F., Sugarman, N.Did Burton Synthesize Diamonds in 1905Nature., Vol. 316, No. 6025, JULY 18TH. P. 220.GlobalSynthetic Diamonds
DS1985-0600
1985
Serebrya, N.R., Losev, V.G., Voronov, O.A., Rakmani, A.V., Yakol.The Morphology of Diamond Crystals Synthesized from Hydrocarbons. a Technical Note.Kristallogr., Vol. 30, No. 5, PP. 1026-1027.RussiaDiamond Morphology, Synthetics
DS1985-0738
1985
Wong, J., Koch, E.F., Hejna, C.L., Garbausk, M.F.Atomic and Microstructural Characterization of Metal Impurities in Synthetic Diamonds.Journal of APPLIED PHYSICS, Vol. 58, No. 9, Nov. 1, PP. 3388-3393.GlobalSynthetic Diamond
DS1986-0733
1986
Shigley, J.E., Fritsch, E., Stockton, C.M., Koivula, J.J., FryerThe gemological properties of the Sumitomo gem quality synthetic yellowdiamondsGems and Gemology, Vol. 22, winter pp. 192-208GlobalSynthetic diamond
DS1987-0056
1987
Bindal, M.M., Singhal, S.K., Nayar, R.K., Chopra, R.A study of the friability of synthetic diamondsJournal of Material Sci.letters, Vol. 6, No. 9, September pp. 1945-1046GlobalSynthetic diamond
DS1987-0112
1987
Collins, A.T., Stanley, M., Woods, G.S.Nitrogen isotope effects in synthetic diamondsJournal of Physics D. Applied physics, Vol. 20, No. 7, July 14, pp. 969-974GlobalSynthetic diamond, luminescense, Petrology
DS1987-0151
1987
Devries, R.C.Synthesis of diamond under metastable conditionsAnnual Rev. Mater. Science, Vol. 17, pp. 161-187GlobalDiamond synthesis
DS1987-0152
1987
Devries, R.C.Synthesis of diamond under metastable conditions. (Review)Annual Review Mater, Vol. 17 pp. 161-187GlobalSynthetic diamond
DS1987-0243
1987
Gems & GemologySynthetic diamondGems and Gemology, Vol. 23, No. 2, Summer p. 44GlobalDiamond synthesis
DS1987-0820
1987
Yakovlev, E.N., Voronov, O.A., Rakhmanina, A.V.Polycrystalline diamond aggregates obtained by using hydrocarbons.(Russian)Sverktverd. Mater.(Russian), No. 2, pp. 3-5GlobalDiamond synthesis
DS1988-0012
1988
Andreev, A.V.Role of the metal-graphite (diamond) interface in the mechanism of diamond synthesis.(Russian)Sverkhtverd. Mater., (Russian), No. 5, pp. 5-9RussiaDiamond synthesis
DS1988-0013
1988
Angus, J.C., Hayman, C.C.Low pressure metastable growth of diamond and 'diamondlike' phasesScience, Vol. 241, No. 4868, pp. 913-921GlobalDiamond synthesis
DS1988-0093
1988
Bundy, P.Synthesis of diamonds and studies in the high pressure regionSoviet Journal of Superhard Material, Vol. 10, No. 3, pp. 1-8RussiaDiamond synthesis
DS1988-0118
1988
Chalyi, V.T., Orap, A.A.Mechano chemical principles for the development ofa superfinish polymeric composite based on diamond sand refractory compounds.(Russian)Fiz. Khimiya Formir. Abraz., Mater. Instrum.(Russian), pp. 71-82RussiaDiamond application, Diamond synthesis
DS1988-0156
1988
Davis, R.F., Sitar, Z., Williams, B.E., Kong, H.S., Kim, H.J. et.Critical evaluation of the status of the areas for future research regarding the wide band GAP semi-conductors diamond, gallium nitride and silicon carbideMaterial Sci. Eng. B. Solid State Adv. Technol, Vol. B1, No. 1, Aug. pp. 77-104GlobalDiamond synthesis
DM1988-0797
1988
Diamond News and South African JewellerNew kind of diamond. (Synthetic)Diamond News and South African Jeweler, No. 5, May p. 23GlobalNews item, Diamond synthesis
DS1988-0230
1988
Fukunaga, O., Nakamura, K.Synthesis of diamond. *JAPPatent: JPN Kokai Tokkyo Koho 88158126 A2, July 1, 1988 3p. JAP, GlobalDiamond synthesis
DS1988-0244
1988
Gems & GemologyDiamond- imitation crystalGems and Gemology, Vol. 24, No. 4, Winter p. 241GlobalDiamond synthesis
DS1988-0254
1988
Getman, A.F., Andreev, A.V., Vityuk, V.I.Preparation of diamonds from various carbonaceous materials in the presence of metallic melts.(Russian)Sverkhtverd. Mater., (Russian), No. 6, pp. 6-8GlobalDiamond synthesis
DM1988-0830
1988
Industrial MineralsKorean synthetic diamondsIndustrial Minerals, No. 255, December p. 77GlobalNews item, Diamond Synthesis
DS1988-0357
1988
Kitabatake, M., Wasa, K.New diamond. Diamond synthesis - translation of Japanese articleNational Technical Information Service N89-10169/5/XAD ( Nat. Aeronautics and Space Admin.) Wash, Sept. 13pGlobalDiamond synthesis
DS1988-0428
1988
Lyamkin, A.I., Petrov, E.A., Petrov, Ye. A., Ershov, A.P.Production of diamonds from explosivesSoviet Physics, Vol. 33, No. 9, pp. 705-706. AbstractRussiaSynthetic diamonds
DS1988-0430
1988
Madiba, C.C.P., Sellschop, J.P.F., Van Wyx, J.A.Light volatiles in synthetic diamond analyzed by ion probesNucl. Instrum. Methods Phys. Res. Sect. B., Vol. B35, No. 3-4, 12(II) pp. 442-445GlobalDiamond synthesis
DS1988-0555
1988
Prins. J.F.Improved activation of boron Dopant atoms imprinted into diamondNucl. Instrum. Methods Phys. Res. Sect. B., Vol. B35, No. 3-4, 12(II) pp. 484-487GlobalDiamond synthesis
DS1988-0725
1988
Vanenckevort, W.J.P., Lochs, H.G.M.Photoluminescence determination of the nitrogen a -defect content indiamonds.(Russian)Journal of Applied Physics, Vol. 64, No. 1, July 1, pp. 436-437GlobalDiamond synthesis, Photoluminescence
DS1989-0017
1989
Albin, S., Watkins, L., Ravi, K., Yokota, S.Diamond films for laser hardeningAppl. Phys. Letters, Vol. 54, No. 26, June 26, pp. 2728-2730GlobalDiamond filM., Synthetic diamonds
DM1989-1690
1989
Asia Wall Street JournalAsahi-GE venture. Artificial diamondsAsia Wall Street Journal, August 31, vetted from Indiaqua, No. 54, 1989/III p. 63GlobalNews item, Diamond synthesis
DS1989-0053
1989
Bachmann, P.K., Messier, R.Emerging technology of diamond thin filmsChemical and Engineering News, Vol. 67, No. 20, pp. 24-27, 30-39GlobalSynthetic diamond, Review
DS1989-0201
1989
Calcote, H.F.The role of ions in soot and diamond formationAmerican Chem. Soc. Div. Preprint, Vol. 34, No. 2, pp. 464-469GlobalDiamond synthesis
DS1989-0228
1989
Carts, Y.A.Lasers deposit diamond films. (Editorial)Laser Foc. W., Vol. 25, No. 2, Feb. p. 444GlobalDiamond synthesis
DS1989-0233
1989
Caveney, R.J.Potential for diamond film.De Beers Diamond Research Laboratory Reportno. 29Indiaqua, No. 52, 1989/I, pp. 141-143GlobalDiamond synthesis, News
DS1989-0238
1989
Celii, F.G., Butler, J.E.Hydrogen-atom detection in the filament assisted diamond depositionenvironmentAppl. Phys. Letters, Vol. 54, No. 11, March 13, pp. 1031-1033GlobalDiamond morphology, Diamond synthesis
DS1989-0254
1989
Chen Chia Fu, Huang, Yen C., Hosomi, S.Growth of diamond seed crystals by microwave plasma CVD.*JAPHyomen, Gitjutsu, *JAP, Vol. 40, No. 2, pp. 295-300JapanDiamond synthesis
DS1989-0255
1989
Chen Chia Fu, Huang, Yen.C., Hosomi, S., Yoshida, I.Effect of oxygen addition on microwave plasma CVD of diamond from CH4-H2mixtureMater. Res. Bulletin, Vol. 24, pp. 87-94GlobalDiamond synthesis
DS1989-0281
1989
Collins, A.T., Kamo, M., Sato, Y.Intrinsic and extrinsic cathodluminescence from single crystal diamonds grown by chemical vapordepositionJournal of Phys. Cond, Vol. 1, No. 25, June 26, pp. 4029-4033GlobalDiamond synthesis, CVD.
DS1989-0291
1989
Corcoran, E.Don't try Tiffanys -thin diamond films capture the heart of industry.(editorial)Scientific American, Vol. 261, No. 2, August pp. 60-GlobalCVD., Diamond synthesis
DS1989-0446
1989
Fritsch, E., Connor, L., Koivula, J.I.A preliminary gemological study of synthetic diamond thin filmsGems and Gemology, Vol. 25, No. 2, Summer pp. 84-90GlobalDiamond Synthesis
DS1989-0490
1989
Gems & GemologyRecent advances in gem diamond synthesisGems and Gemology, Vol. 25, No. 1, Spring p. 50GlobalDiamond synthesis
DS1989-0491
1989
Gems & GemologySynthetic diamond vs. cubic zirconiaGems and Gemology, Vol. 25, No. 1, Spring p. 50GlobalDiamond synthesis
DS1989-0492
1989
Gems & GemologySynthetic diamonds by detonationGems and Gemology, Vol. 25, No. 1, Spring p. 50GlobalDiamond synthesis
DS1989-0496
1989
Gems & GemologyImitations from Africa - fake diamond octahedra( synthetic cubiczirconia)Gems and Gemology, Vol. 25, No. 1, Spring p. 50NamibiaDiamond synthesis
DS1989-0581
1989
Hannssen, L.M., Carrington, W.A., Butler, J.E., Snail, K.A.Diamond synthesis using an oxygen acetylene torchMaterial Letters, Vol. 7, No. 7-8, Dec. pp. 289-292GlobalDiamond synthesis
DS1989-0639
1989
High Tech Materials AlertVery high quality diamonds from a 'dirty' processHigh Tech Materials Alert, Vol. 6, No. 9, September pp. 1-4, 7GlobalCVD., Diamond synthesis
DS1989-0656
1989
Hong Kong StandardSumitomo's synthetic diamondsHong Kong Standard, August 31, vetted from Indiaqua, No. 54, 1989/III p. 63GlobalNews item, Diamond synthesis
DS1989-0694
1989
Ito, T.Method and apparatus for synthesis of diamondPatent: Europe No. 305903 A1 March 8, 1989, 8pGlobalDiamond synthesis
DS1989-0744
1989
Kanda, H., Ohsawa, T., Fukunaga, O., Sunagawa, I.Effect of solvent metals upon the morphology of synthetic diamonds #1Journal of Crystal Growth, Vol. 94, pp. 115-124GlobalDiamond synthesis, Diamond morphology
DS1989-0956
1989
Matsuda, J., Nagao, K.Noble gas emplacement in shock produced diamondsGeochimica et Cosmochimica Acta, Vol. 53, pp. 1117-1121GlobalDiamond Synthesis, Ureilites
DS1989-1088
1989
Nam, T.L., Fallon, P.J., Keddy, R.J., Vanrijn, H.J.Detection of nuclear radiation by scintillation-counting using syntheticdiamondAppl. Rad. Is, Vol. 40, No. 8, pp. 657-661GlobalDiamond synthesis
DS1989-1103
1989
Neifeld, R.A.Manufacture of industrial grade diamondsNational Technical Information Service Pat. Appl. 451698 AO May 1, . 1990 7p/ National Technical Information Service order No. Pat appl/ -7-451, 7pGlobalDiamond synthesis, Laser radiation diamond
DS1989-1104
1989
Neifeld, R.A.Method of growing industrial grade diamondPatent application -7-451698, available National Technical Information Service Patent application PC NO, Filed Dec. 18, 1989 7pGlobalSynthetic diamond
DS1989-1123
1989
Niedbalska, A.Low-pressure static diamond synthesis from carbonatized organiccompoundsGeological Association of Canada (GAC) Annual Meeting Program Abstracts, Vol. 14, p. A116. (abstract.)GlobalDiamond synthetic
DS1989-1221
1989
Pinneo, J.M.CVD diamond- new material, new applicationsPhoton. Spec, Vol. 23, No. 10, October p. 123GlobalSynthetic diamonds, Diamond synthesis
DS1989-1221
1989
Pinneo, J.M.CVD diamond- new material, new applicationsPhoton. Spec, Vol. 23, No. 10, October p. 123GlobalSynthetic diamonds, Diamond synthesis
DS1989-1222
1989
Pinneo, M.Low-pressure nucleation routes. Diamond filmsNature, Vol. 342, December 14, p. 735-736GlobalDiamond synthesis, CVD.
DS1989-1325
1989
Sahoo, N.Theory of structure and hyperfine properties of anomalous muonium inPhys. Rev. B., Vol. 39, No. 18, June 15, pp. 3389-3410GlobalDiamond synthesis, Muonium/germaniuM.
DS1989-1348
1989
Scarratt, K.Notes: How to read absorption curves. Describes10 de Beers synthetic yellow diamondsJournal of Gemology, Vol. 21, No. 6, pp. 339-346GlobalDiamond synthesis, FTIR spectrometer
DS1989-1382
1989
Shigley, J.E., Fritsch, E.Comparison of natural and synthetic diamondDiamond Workshop, International Geological Congress, July 15-16th. editors, pp. 96-99. AbstractGlobalDiamond morphology, Natural, Synthetic diamond
DM1989-1945
1989
South China Morning PostGrowing diamond crystals from sewer gas..Indiaqua, No. 52, 1989/I, p. 43. (Jan. 1st.)United StatesNews item, Diamond synthesis
DS1989-1440
1989
Spear, K.E.Chemical and energetic aspects of CVD diamond growthAmerican Chem. Soc. Div. Preprint, Vol. 34, No. 2, pp. 436-443GlobalDiamond synthesis, CVD.
DS1989-1462
1989
Strong, H.M.Early diamond making at General ElectricAmerican Journal of Physics, Vol. 57, No. 9, September pp. 794-802GlobalDiamond synthesis, History
DS1989-1510
1989
Trefilov, V.I., Mikhalenkov, V.S., Savvakin, G.I., Tsapko, E.A.Structural char. of ultrafine diamonds and hypothetical mechanism of their formation under nonequil conditions of detonating carbon.(Russian)Doklady Academy of Sciences Akademy Nauk SSSR, (Russian), Vol. 305, No. 1, pp. 85-90RussiaDiamond synthesis
DS1989-1516
1989
Tsai, J.W., Yu, S.C.Diamond synthesis from vapors at low pressure conditionsGeological Association of Canada (GAC) Annual Meeting Program Abstracts, Vol. 14, p. A116. (abstract.)GlobalDiamond synthetic
DS1989-1535
1989
Vakil, H.B., Banholze.., W.F., Kehl, R.J.An experimental investigation of the isotope effect in the CVD growth ofdiamondsMater. Res. Bulletin, Vol. 24, No. 6, June pp. 733-738GlobalCVD Diamond morphology, Diamond synthetic
DS1989-1577
1989
Walton, K.R., Dismukes, J.P., Krueger, R.A., Field, F.R. III, ClarkTechnology assessment for CVD-diamond-coated cutting tool insertsMaterials and Society, Vol. 13, No. 3, pp. 319-350GlobalDiamond synthesis, CVD -overview/good refs
DS1990-0106
1990
Akaishi, M., Kanda, H., Yamoka, S.Synthesis of diamond from graphite-carbonate systems under very high temperature and pressureJournal of Crystal Growth, Vol. 104, pp. 578-581GlobalDiamond synthesis, Experimental mineralogy
DS1990-0199
1990
Bi, Xiang Xin, Eklund, P.C., et al.Optical properties of chemical vapour deposited diamond filmsJournal of Material Research, Vol. 5, No. 4, pp. 811-817GlobalDiamond synthesis, CVD.
DM1990-1687
1990
Diamond News and South African JewellerDe Beers Research Lab. Report no. 32 -diamond research -quo vadis?Diamond News and South African Jeweller, No. 6, June p. 49-50South AfricaNews item, Diamond synthesis
DS1990-0510
1990
Galli, G., Martin, R.M., Car, R., Parrinello, M.Melting of diamond at high pressureScience, Vol. 250, December 14, pp. 1547-1549GlobalDiamond synthesis, Thermal conductivity
DS1990-0525
1990
Geballe, T.H., Pohl, R.O., Seitz, R.Cool diamonds. Letters to Science in response to E. Marshall's articleScience, Vol. 250, November 30, pp. 1194-1195GlobalDiamond synthesis, Thermal conductivity
DS1990-0690
1990
High Tech Materials AlertDiamond semiconductor limitsHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 1, January p. 3GlobalNews item, Diamond synthesis
DS1990-0691
1990
High Tech Materials AlertEver closer to perfect diamond filmsHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 10, October p. 2GlobalNews item, Diamond synthesis
DS1990-0692
1990
High Tech Materials AlertMajor diamond breakthroughs- Norton achieves 1 mm diamond coatingsHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 11, November p. 1GlobalNews item, Diamond synthesis
DS1990-0693
1990
High Tech Materials AlertDiamond films, faster and cheaperHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 12, December p. 1GlobalNews item, Diamond synthesis
DS1990-0694
1990
High Tech Materials AlertSuperplastically formed ZnS/diamond compositesHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 3, March p. 2, 3GlobalNews item, Diamond synthesis
DS1990-0695
1990
High Tech Materials AlertDiamond theory- concentration of energy vacanciesHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 4, April p. 7GlobalNews item, Diamond synthesis
DS1990-0696
1990
High Tech Materials AlertNew diamond deposition processHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 7, July p. 8GlobalNews item, Diamond synthesis
DS1990-0697
1990
High Tech Materials AlertGE achieves new diamond properties.. more thermally conductive and more laser resistantHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 8, August p. 3GlobalNews item, Diamond synthesis
DS1990-0698
1990
High Tech Materials AlertLarger diamonds from Sumitomo 5 to 9 caratsHigh Tech Materials Alert, please note CVD not normally covered in refs., Vol. 7, No. 9, September p. 8GlobalNews item, Diamond synthesis
DM1990-1741
1990
Ingrassia, L.How secret GE recipe for making diamonds may have been stolenWall Street Journal, Wednesday Feb. 28, pp. A1 and A4GlobalNews item, Diamond synthesis
DS1990-0958
1990
Lundblad, E.Swedish synthetic diamond scooped the world 37 years agoIndiaqua, No. 55 1990/1, pp. 17, 19-21, 23SwedenSynthetic diamond, History
DS1990-0989
1990
Marshall, E.GE's cool diamonds.. prompt warm wordsScience, Vol. 250, October 5, pp. 25-26GlobalDiamond synthesis, Sietz
DS1990-1049
1990
Miller, H.G.A synthesis of the geophysical characteristics of terranes in easternCanadaTectonophysics, Vol. 177, pp. 171-191AppalachiaGeophysics, Synthesis
DS1990-1088
1990
National Academy PressDiamond and diamond like materials: an emerging technologyNational Academy Press, Washington, D.C., GlobalDiamond synthesis, CVD.
DS1990-1089
1990
National Materials Advisory BoardStatus and applications of diamond and diamond like materials: an emergingtechnologyNational Academy Press, copy held Canmet, 115p. Table of contents on fileGlobalDiamond uses, Diamond synthesis
DS1990-1092
1990
NatoAdvances study Institute diamond and diamond like films and coatingsNational Technical Information Service, AD-A225 517, (Geological Society of Canada (GSC) Listing)GlobalDiamond synthesis, CVD.
DS1990-1293
1990
Saito, Y., Sato, K., Gomi, K., Miyadera, H.Diamond synthesis from CO-H2 mixed gas plasmaJournal of Material Science, Vol. 25, No. 28, February pp. 1246-1250GlobalDiamond synthesis, Gas plasma
DS1990-1324
1990
ScienceDiamond: glittering prize for materials scienceScience, Vol. 250, December 21, pp. 1640-1641GlobalDiamond synthesis, Overview -brief
DS1990-1368
1990
Singh, B.P., Gupta, S.K., Dhawan, U., Lal, K.Characterization of synthetic diamonds by EPR and X-raydiffractiontechniquesJournal of Material Science, Vol. 25, No. 28, February pp. 1487-1490GlobalDiamond synthesis, EPR and X-ray diffraction
DM1990-1904
1990
Skillings Mining ReviewDiamond films: a technology impact report. No. T013,Publishing Frost and Sullivan Inc. 106 Fulton Street N.Y.10038 $ 990.00 United StatesSkillings Mining Review, Vol. 79, No. 8, February 24, p. 19GlobalNews item, Diamond synthesis
DS1990-1418
1990
Stinson, S.GES new diamonds have unusual propertiesChem. Eng, Vol. 68, No. 29, July 16, p. 5GlobalDiamond morphology, Diamond synthesis
DS1990-1482
1990
Tsai, J.W., Yu, S.C.Diamond synthesis from vapours at low pressure conditionsProcess Mineralogy IX: editors, Petruk, W., Hagni, R.D. et al. TMS, No. IX:, pp. 607-614GlobalDiamond synthesis, Diamond crystallography
DS1990-1527
1990
Waggoner, J.GE produces a better diamondPhoton. Spec, Vol. 24, No. 8, August p. 34-GlobalDiamond, Synthetic diamond
DS1990-1580
1990
Woods, G.S., Vanwyk, J.A., Collins, A.T.The nitrogen content of type 1B synthetic diamondPhil. Magazine B., Vol. 62, No. 6, December pp. 589-595GlobalDiamond synthesis, Nitrogen
DS1990-1608
1990
Yarbrough, W.A., Messier, R.Current issues and problems in the chemical vapor deposition of diamondScience, Vol. 247, pp. 688-696GlobalDiamond synthesis, Review
DS1991-0021
1991
Amato, I.GE achieves dial an isotope diamondScience, Vol. 254, November 1, p. 653GlobalNews item, Synthetic diamonds
DS1991-0242
1991
Caveney, R.J.Scientists at de Beers laboratory have successfully synthesized a 14, 2carat stone. Largest yet manufacturedIndiaqua, Industrial Diamond ANNUAL, 1991 p. 246South AfricaNews item, Diamond synthesis
DS1991-0516
1991
Fritsch, E.Synthetic diamond thin films: the potential impact on the gem tradeInternational Gemological Symposium, June 20-24, 1991 Los Angeles, Gems and Gemology, Vol. 27, Spring, Program p. 1GlobalDiamond synthesis, CVD.
DM1991-2078
1991
Industrial MineralsSoviet synthetic diamondsIndustrial Minerals, No. 284, May p. 68RussiaNews item, Synthetic diamonds
DS1991-0908
1991
Koivula, J.I., Kammerling, R.C.Gem-quality synthetic diamonds from the USSRGems and Gemology, Gem News, Vol. XXVII, Spring p. 46RussiaNews item, Synthetic diamonds
DS1991-0938
1991
Kulakova, I.I., Rudenko, A.P., Skvortsova, V.I.The formation kimberlite diamonds through chemical synthesis in open catalytic systemProceedings of Fifth International Kimberlite Conference held Araxa June 1991, Servico Geologico do Brasil (CPRM) Special, pp. 533-534RussiaSynthetic diamond, Crystallography
DS1991-0950
1991
Lang, A.R., Moore, M., Makepeace, A.P., Wierzchov, W.On the dilation of synthetic type 1B diamond by substitutional nitrogenimpurityPhil. Transactions Roy. A., Vol. A 337, No. 1648, Dec. 16, pp. 497-520GlobalDiamond synthesis, Nitrogen impurity
DS1991-1076
1991
Matsuda, J., Fukunaga, K., Ito, K.Noble gas studies in vapor growth diamonds: comparison with shock produced diamonds and the origin of diamonds in ureilitesGeochimica et Cosmochimica Acta, Vol. 55, pp. 2011-2023GlobalSynthetic diamonds, CVD., Ureilites
DS1991-1409
1991
Regis, E.Diamonds in the rough. Earth has been making diamonds since the dawn oftime. John Angus has been making them since the 1960's. He may have found a better wayDiscover, Vol. 12, No. 3, March pp. 66-71GlobalSynthetic diamonds, CVD.
DS1991-1567
1991
Shigley, J.E.Gemological properties of gem-quality synthetic diamonds grown by high pressure methodsInternational Gemological Symposium, June 20-24, 1991 Los Angeles, Gems and Gemology, Vol. 27, Spring, Program p. 1GlobalDiamond morphology, Synthetic diamonds
DS1991-1675
1991
Sunagawa, I.Basic concept in the identification of natural and synthetic diamondsXiii International Gemmological Conference Held South Africa, Stellenbosch, 2p.abstractGlobalDiamond mineralogy, Synthetic diamonds
DM1992-1820
1992
Diamond News and South African JewellerCostly carbon.. synthetic diamondsDiamond News and South African Jeweller, No. 3, p. 31GlobalNews item, Synthetic diamonds
DS1992-0459
1992
Field, J.E.The properties of natural and synthetic diamondAcademic Press, second edition, 710p. approx. $ 200.00GlobalDiamond morphology, Diamond synthesis
DS1992-0598
1992
Graebner, J.E., Jin, S., Kammlott, G.W., Herb, J.A., Gardiner, C.F.Large anisotropic thermal conductivity in synthetic diamond filmsNature, Vol. 359, No. 6394, October 1, pp. 401-402GlobalDiamond synthesis, CVD.
DS1992-0648
1992
Haggin, J.Carbon nitride, Beta-C3N4 developed by researchers at Northwestern University may be harder than diamondChem. Eng. News, Vol. 70, No. 21, May 25, p. 20. # HV 770GlobalSynthetic diamond, Industrial use
DS1992-1159
1992
Palyanov, Yu.N., Malinovskiy, I.Yu., Borzdov, Yu.M., KhokhryakovUse of the split sphere apparatus for growing large diamond crystals without the use of a hydraulic press.Doklady Academy of Sciences USSR, Earth Science Section, Vol. 315, pp. 233-237.RussiaDiamond synthesis
DS1992-1217
1992
Ponahlo, J.Cathodluminescence (CL) and CL spectra of de Beers' experimental syntheticdiamondsJournal of Gemology, Vol. 23, No. 1, January pp. 3-18GlobalSynthetic diamonds, Chlorine, Cathodluminescence
DS1992-1271
1992
Requeiro, M.N.Diamond from fullerenesAdvanced Materials, Vol. 4, No. 6, June pp. 438-440. # JB802GlobalFullerenes, Diamond synthesis
DS1992-1564
1992
Travis, J.A gem of a diamond beaterScience, Vol. 256, No. 5055, April 17, p. 307GlobalSynthetic diamonds, Carbon
DS1993-0015
1993
Akaishi, M., Kanda, H., Yamaoka, S.Phosphorous: an elemental catalyst for diamond synthesis and growthScience, Vol. 259, No. 5101, March 12, pp. 1592-1593GlobalDiamond synthesis
DS1993-0147
1993
Bovenkerk, H.P., et al.Errors in diamond synthesisNature, Vol. 365, No. 6441, September 2, pp. 19-21GlobalDiamond synthesis
DS1993-0156
1993
Bradley, D.Whats harder than diamondNew Scientist, Vol. 137, No. 1865, March 20, pp. 22-23GlobalDiamond synthesis
DM1993-1924
1993
Diamond News and South African JewellerBrief note on microwave produced diamondsDiamond News and South African Jeweller, No. 2, February, p. 25GlobalNews item, Diamond synthesis
DM1993-1974
1993
Gem News InternationalSumitomo Electric synthesizes high-purity diamondsGems and Gemology, Gem News, Vol. 29, Fall, pp. 208.JapanDiamond morphology, Synthetic diamonds
DM1993-1975
1993
Gem News InternationalGemological Institute of America (GIA) says Russian gem-quailtyGems and Gemology, Gem News, Vol. 29, Fall, pp. 207-208.RussiaDiamond morphology, Synthetic diamonds
DS1993-0909
1993
Lewtwyle, K.A girl's best friend... diamond continues to resist efforts at economicsynthesis.Scientific American, Vol. 269, No. 6, December, p. 40-.GlobalEconomics, Diamond synthesis
DS1993-1452
1993
Shigley, J.E., Fritsch, E., Reinitz, I.Two near colorless general electric type IIA synthetic diamond crystalsGems and Gemology, Notes and New Techniques, Vol. 29, Fall, pp. 191-196.GlobalDiamond morphology, Synthetic diamonds
DM1993-2417
1993
Teslenko, V.Beware: Russia sells "man-made' diamondsMazal U'Bracha, No. 53, August-September pp. 58, 60, 61Russia, Commonwealth of Independent States (CIS)Synthetic diamonds, Economics
DS1993-1701
1993
Watts, S.Anyone for cheap diamond film?New Scientist, Vol. 138, No. 1874, May 22, pp. 39-42.GlobalCVD., Diamond synthesis
DS1993-1736
1993
Willmott, R.Diamond replicas- possible but justJournal of Gemology, Vol. 23, No. 8, October pp. 486-490.GlobalDiamond synthesis
DM1994-2070
1994
Diamond InternationalRussia steps up synthetic productionDiamond International, May-June p. 33.RussiaNews item, Diamond synthesis
DS1994-0595
1994
Gems & GemologyNear colorless Russian synthetic diamond examinedGems and Gemology, Vol. 30, Summer pp. 123, 124.RussiaDiamond color, Synthetic diamonds
DM1994-2174
1994
Helmer, J.Synthetics dilemma for RussiaDiamond International, March-April pp. 55, 56.RussiaDiamond synthesis, Economics
DS1994-1016
1994
Lee, S.S., Minsek, D.W., Vestyck, D.J., Chen, P.Growth of diamond from atomic hydrogen and a supersonic free jet of methylradicals.Science, Vol. 263, March 14, pp. 1596-1598.GlobalDiamond synthesis
DS1994-1329
1994
Palynamov, Y.N., et al.Inclusions in synthetic diamonds (Russian)Doklady Academy of Sciences Nauk SSR, (Russian), Vol. 338, No. 1, Sept. pp. 78-80.RussiaDiamond synthesis, diamond inclusions
DM1994-2639
1994
Scarratt, K., DuTroit, G., Sersen, W.Russian synthetics examinedDiamond International, March-April pp. 45, 46, 49, 50, 52.RussiaDiamond synthesis, Morphology
DS1994-1589
1994
Shigley, J.E., Fritsch, E., Koivula, J.I., Sobolev, N.V.The gemological properties of Russian gem quality synthetic yellowdiamonds.Gems and Gemology, Vol. 29, Winter, pp. 228-248.RussiaSynthetic diamonds, Colour -yellow
DS1995-0232
1995
Bulletin, S.J., Chalker, P.R.high pressureerformance diamond and diamond like coatingsJournal of Metals (JOM), Vol. 47, No. 4, April pp. 16-19.GlobalDiamond synthesis
DS1995-0339
1995
Collins, A.Diamonds designed to order could inspire the next generation of particle detectors and laptop computers.New Scientist, Vol. 348, No. 2001, Oct. 28, pp. 36-39.GlobalDiamond synthesis
DS1995-0606
1995
Gems & GemologyDiamonds grown from liquid at 1 atm. extract from Diamond Industry WeekGems and Gemology, Vol. 31, Winter pp. 296.GlobalDiamond synthetic
DS1995-0609
1995
Gems & GemologyTreated color red - synthetic diamondsGems and gemology, Gem Trade Notes, Vol. 31, Spring, p. 53-4.GlobalMineralogy, Diamond synthesis
DS1995-0613
1995
Gems & GemologySynthetic diamonds misrepresented as Canadian rough...from SaskatchewanGems and Gemology -Gem News, Vol. 31, summer p. 129.SaskatchewanDiamond synthesis, Diamond fraud
DS1995-0973
1995
Klages, C-P.Metastable diamond synthesis; principles and applicationsEuropean Journal of Mineralogy, Vol. 7, No. 4, August pp. 767-774.GlobalDiamond synthesis
DS1995-1341
1995
New ScientistLittle gems... diamonds designed to order could inspire the next generation of particle detectors...New Scientist, Vol. 148, No. 2001, Oct. 18, pp. 36-39.GlobalDiamond synthesis
DS1995-1805
1995
Sosso, F.Some observations on a gem quality synthetic yellow diamond produced in the region of Vladimir (Russia).Journal of Gemology, Vol. 24, No. 5, Jan. pp. 363-368.RussiaDiamond morphology, Diamond synthesis
DS1995-2018
1995
Wallich, P.A widgets best friend - diamonds may bring new a new facet to motors andsensors.Scientific American, Vol. 272, No. 4, April p. 35.GlobalDiamond synthesis
DS1996-0268
1996
Chepurov, A.I., Sonin, V.M., Khokhryakova, I.P.Interaction of free state metals with diamond under high temperatureannealing.Russian Geology and Geophysics, Vol. 36, No. 7, pp. 61-68.RussiaDiamond synthesis
DM1996-1702
1996
DiamantaireDe Beers unveils synthetic detectors. #2Diamantaire, No. 47, November p. 9.GlobalNews item, Synthetic diamonds
DS1996-0501
1996
Gems & GemologyA notable yellow synthetic diamond from RussiaGems and Gemology, Lab Notes, Vol. 32, Spring p. 44.RussiaNews item, Diamond synthesis
DS1997-0836
1997
Nassau, K., McClure, S.F., Elen, S., Shigley, J.E.Synthetic moissanite: a new diamond substituteGems and Gemology, Vol. 33, winter, pp. 260-275.GlobalDiamond synthesis, Moissanite
DS1997-0881
1997
Palyanov, Y.N., Borzdov, Sokol, Khokhryakov, Gusev ..Dislocation free monocrystals of sythetic diamondDoklady Academy of Sciences, Vol. 353, No. 2, Feb-Mar, pp. 243-6.GlobalDiamond - synthetics, crystallography
DS1997-0882
1997
Palyanov, Y.N., Khokhryakov, A., Borzdov, Sokol et al.Growth conditions and real structure of synthetic diamond crystalsRussian Geology and Geophysics, Vol. 38, No. 5, pp. 920-45.GlobalDiamond morphology, Synthetics
DS1997-0883
1997
Palyanov, Y.N., Sokol, A.G., Borzdov, et al.Synthesis and characterization of diamond single crystals up to 4 caratsDoklady Academy of Sciences, Vol. 355A, No. 6, July-Aug. pp. 856-61.RussiaDiamond morphology, Diamond synthesis
DS1997-1162
1997
Tomilenko, A.A., Chepurov, Turkin, Shebanin, SobolevFluid inclusions in synthetic diamond crystalsDoklady Academy of Sciences, Vol. 353, No. 2, Feb-Mar, pp. 247-50.GlobalDiamond - synthetics, crystallography
DS1998-0193
1998
Butler, J.E.Chemical vapor deposition of diamond: synthesis in partial vacuumsIma 17th. Abstract Vol., p. A11. abstractGlobalCDV, Diamond synthesis
DS1998-0237
1998
Chatham, T.H.Created gemstones, past, present and future. Presentation Can. Gemollogical Association mentions diamondCanadian Gemologist, XIX, No. 1, Spring pp. 8-12.RussiaDiamond synthesis
DS1998-0332
1998
De, S., Heaney, P.J., Vincenzi, E.P., Hargraves, R.B.Microstructural comparison between natural polycrystalline diamond -carbonado and artificial..Ima 17th. Abstract Vol., p. A16. poster abstractBrazil, Central African RepublicCarbonado, Diamond synthesis
DS1998-0626
1998
Hodgkinson, A.Diamond distinction from synthetic moissanite - in the darkCanadian Gemologist, XIX, No. 2, Summer pp. 59-60.GlobalDiamond synthesis, Moissanite
DS1998-0871
1998
Li, Y., Qian, Y., Zhou, G.A reproduction pyrolysis catalysis synthesis of diamondScience, Vol. 281, No. 5374, July 10, pp. 246-7.GlobalDiamond - synthetic
DS1999-0083
1999
Bosshart, G., Smith, C.P.Synthetic blue diamonds hit the marketRapaport Diamond Report, Vol. 22, No. 20, June 4, pp. 114-6.GlobalReview - Gems and Gemology Fall 2000 p. 285., Diamond synthetics
DM1999-0944
1999
Financial PostScientists make gem quality diamonds in the laboratory... heat and pressureused.Financial Post, Aug. 19, 1p.Russia, United StatesDiamond synthesis, History
DS1999-0242
1999
Gems & GemologySynthetic diamonds widely available... Russian Coloured Stone CoGems and Gemology Gem News, Spring, p. 47, 48.RussiaNews item, Synthetic diamonds
DS1999-0302
1999
Hazen, R.M.The diamond makersCambridge, 258p. $ 20.00 United States paperbackGlobalUpdate on The Alchemists, Diamond synthesis
DS2000-0101
2000
Borzdov, Y.M., Sokol, Palyanov, Khokhryakov, SobolevGrowth of synthetic diamond monocrystals weighing up to six carats and perspectives of their application.Doklady Academy of Sciences, Vol. 374, No. 7, Sept-Oct. pp. 1113-5.RussiaDiamond - morphology, Diamond - synthesis, Crystallography
DS2001-0363
2001
Gem Trade Lab NotesDiamond: synthetic diamond with distinctive surface featuresGems and Gemology, Gem trade lab notes, Vol. 37, spring, p. 60.GlobalDiamond - synthesis
DS2002-0145
2002
BetterThanDiamond.comTakara lab grown gem grade fancy yellow diamonds now available for saleBetterThanDiamonds, May 29, 2p., May 29, 2p.GlobalNews item - press release, Synthetic diamonds
DS2002-0146
2002
BetterThanDiamond.comTakara lab grown gem grade fancy yellow diamonds now available for saleBetterThanDiamonds, May 29, 2p., May 29, 2p.GlobalNews item - press release, Synthetic diamonds
DS2002-0382
2002
Digonskii, S.V., Shatagin, N.N.Modeling natural diamond generation in high pressure chambersMoscow University Geology Bulletin, Vol. 57, 1, pp. 49-51.GlobalDiamond synthesis
DS2002-0692
2002
Hearts on FireA milestone advertising campaign in the world of branded diamonds: Hearts on Fire national WOW campaign building its brand through local partnerships.Hearts on Fire, Nov. 25, 1p.MassachusettsPress release, diamond synthesis
DS2002-1460
2002
Shigley, J.E., Abbaschian, R., Clarke, C.Gemesis laboratory created diamonds. a study of the jewelry quality yellow synthetic diamonds being grown on a commercial scale by Genesis Corp. Sarasota FloridaGems & Gemology, Vol. 38, 4, pp. 301-310.GlobalDiamond - synthesis, Economics
DS2003-0078
2003
Basavalingu, B.Hydrothermal synthesis of diamondGeological Society of India Journal, Vol. 61, 2, pp. 232-3.GlobalDiamond synthesis
DS2003-0450
2003
Gem Trade Lab NotesLifeGem synthetic diamondsGems & Gemology, Vol. 39, 1, Spring, p. 62.GlobalDiamond - synthetic
DM2003-1729
2003
Herald Tribune SarasotaGemesis to micro-label its cultured diamondsHerald Tribune, Dec. 16, 1p.GlobalNews item - Gemesis Corporation, synthetics
DM2003-1742
2003
Idex OnlineSynthetic diamonds are giving the industry yellow feverIdex Magazine, No. 163, Nov. 16, 5p.GlobalNews item - synthetic markets
DS2003-0621
2003
Irifune, T., Kurio, A., Sakamoto, S., Inoue, T., Suiniya, H.Ultrahard polycrystalline diamond from graphite. CorrectionNature, No. 6923, Feb. 6, p. 599. also No. 6925, p. 806 Feb 20GlobalDiamond synthesis
DS2003-0787
2003
Lee, S.T., Lifshitz, Y.The road to diamond wafersNature, No. 6948, July 31, p. 500.GlobalDiamond - materials, synthesis
DS2003-0838
2003
Lomonosov, I.V., Fortov, V.E., Frolova, A.A., Khishchenko, K.V.The simulation of transformation of graphite to diamond under conditions of dynamicHigh Temperature, (Kluwer Publication), Vol. 41, 4, pp. 447-458.GlobalDiamond synthesis
DS2003-0937
2003
Meng, Y., Newville, M., Sutton, S., Rakovan, J., Mao, H-K.Fe and Ni impurities in synthetic diamondAmerican Mineralogist, Vol. 88, 10, Oct. pp. 1555-69.GlobalDiamond - synthesis
DS2003-1005
2003
New ScientistHarvesting diamonds from CO2New Scientist, No. 2405, July 26, p. 17.GlobalDiamond - synthesis
DM2003-2082
2003
RapaportApollo Diamond to release CVD diamonds in Q4Rapaport News, August 11, 1/4p.GlobalDiamond synthesis, Apollo Diamond
DM2003-2085
2003
RapaportConflict and synthetic diamonds - major threats to industry. Brief comments on keynoteRapaport News, Nov. 3, 1/8p.GlobalNews item - HTHP, CVD
DM2003-2086
2003
RapaportSundance execs speak on HOHT. Only type IIa diamonds can be used to createRapaport, Dec. 12, 1/8p.GlobalNews item - Sundance Diamonds
DS2003-1191
2003
Roy, R.Diamond synthesis: a brief comment on the historyCurrent Science, Vol. 84, 2, Jan. 25, p. 129.GlobalDiamond - synthesis
DS2003-1242
2003
Scientific AmericanWorking knowledge artificial diamondsScientific American, Vol 288, 2, Feb. pp. 82-3.GlobalDiamond synthesis
DS200412-0311
2003
Chapman, J.Fundamentals of making synthetic diamonds. 500 million carats are produced annually.Rough Diamond Review, No. 3, December, pp.TechnologyDiamond synthesis
DS200412-0454
2002
Digonskii, S.V., Shatagin, N.N.Modeling natural diamond generation in high pressure chambers.Moscow University Geology Bulletin, Vol. 57, 1, pp. 49-51.TechnologyDiamond synthesis
DS200412-0514
2004
Ekimov, E.A., Sidorov, V.A., Melnik, N.N., Gierlotka, S., Presz, A.Synthesis of polycrystalline diamond in the boron carbide graphite and boron graphite systems under high pressure and temperaturJournal of Materials Research, Vol. 39, 15, pp. 4957-4960.TechnologyDiamond synthesis
DS200412-0619
2003
Gem Trade Lab NotesLifeGem synthetic diamonds.Gems & Gemology, Vol. 39, 1, Spring, p. 62.TechnologyDiamond - synthetic
DM200412-2422
2003
Herald Tribune SarasotaGemesis to micro-label its cultured diamonds.Herald Tribune, Dec. 16, 1p.United StatesNews item - Gemesis Corporation, synthetics
DM200412-2423
2004
Herald Tribune SarasotaGemesis teams with jewelry maker.Herald Tribune, Feb. 5, 1p.United StatesNews item - Gemesis, synthetic diamonds
DM200412-2423
2004
Herald Tribune SarasotaGemesis teams with jewelry maker.Herald Tribune, Feb. 5, 1p.United StatesNews item - Gemesis, synthetic diamonds
DM200412-2430
2003
Idex OnlineSynthetic diamonds are giving the industry yellow fever.IDEX Magazine, No. 163, Nov. 16, 5p.TechnologyNews item - synthetic markets
DM200412-2479
2004
Idex OnlineGIA reveals progress in treated, synthetic diamonds.Idex Online, June 13, 1p.TechnologyDiamond - synthetic identification
DM200412-2486
2004
Idex OnlineGetting the full treatment. HPHT history.. process that could improve a color of a diamond.Idex Online, Feb. 29, 3p.TechnologySynthetic diamonds
DS200412-1105
2003
Lee, S.T., Lifshitz, Y.The road to diamond wafers.Nature, No. 6948, July 31, p. 500.TechnologyDiamond - materials, synthesis
DS200412-1171
2003
Lomonosov, I.V., Fortov, V.E., Frolova, A.A., Khishchenko, K.V., Charakhchyan, A.A., Shurshalov, L.V.The simulation of transformation of graphite to diamond under conditions of dynamic compression in a conic target.High Temperature, Vol. 41, 4, pp. 447-458.TechnologyDiamond synthesis
DS200412-1233
2004
Martineau, P.M., Lawson, S.C., Taylor, A.I., Quinn, S.J., Evans, D.J.F., Crowder, M.J.Identification of synthetic diamond grown using chemical vapor deposition (CVD).Gems & Gemology, Vol. 40, 1, Spring, pp. 2-25.TechnologyDiamond synthesis - review
DS200412-1297
2003
Meng, Y., Newville, M., Sutton, S., Rakovan, J., Mao, H-K.Fe and Ni impurities in synthetic diamond.American Mineralogist, Vol. 88, 10, Oct. pp. 1555-69.TechnologyDiamond - synthesis
DS200412-1427
2003
New ScientistHarvesting diamonds from CO2.New Scientist, No. 2405, July 26, p. 17.TechnologyDiamond - synthesis
DM200412-3105
2003
Rapaport NewsConflict and synthetic diamonds - major threats to industry. Brief comments on keynote address at Diamond Colloqium in JohannesbRapaport News, Nov. 3, 1/8p.GlobalNews item - HTHP, CVD
DM200412-3107
2003
Rapaport NewsSundance execs speak on HOHT. Only type IIa diamonds can be used to create colorless diamonds.Rapaport News, Dec. 12, 1/8p.TechnologyNews item - Sundance Diamonds
DM200412-3137
2004
Rapaport NewsScientist reveals signs of treated and synthetic diamond.Rapaport News, April 23, 1/4p.TechnologyDiamond synthesis
DM200412-3143
2003
Rapaport NewsApollo Diamond to release CVD diamonds in Q4.Rapaport News, August 11, 1/4p.TechnologyDiamond synthesis Apollo Diamond
DS200412-1788
2004
Sever, M.Next best friend: cultured diamonds.Geotimes, Vol. 49, 7, pp. 58-59.TechnologyDiamond synthesis
DS200412-1804
2004
Shigley, J.E., McClure, S.F., Breeding, C.M., Hsi-tien Shen, A., Muhlmeister, S.M.Lab grown coloured diamonds from Chatham created gems. Identifying characteristics of yellow, blue, green and pink synthetic diaGems & Gemology, Vol. 40, 2, Summer, pp.128-145.ChinaDiamond synthesis
DS200412-1815
2004
Shumilova, T.Kinetic postcrystallization of diamond and graphite at atmospheric pressure.Lithos, ABSTRACTS only, Vol. 73, p. S101. abstractTechnologyDiamond synthesis
DS200412-1816
2004
Shuskanova, A.V., Litvin, Yu.A.Experimental liquid immiscibility in sulfide silicate pyrrhotite garnet system at 7 GPa: implications to origin of diamond and sLithos, ABSTRACTS only, Vol. 73, p. S101. abstractTechnologyDiamond synthesis
DM200412-3314
2004
The Loupe ( GIA )Another look at detection of CVD synthetic diamonds - and some unusual red gemstones.Gemological Institute of America, Spring, 1p. p. 15.TechnologyNews item - synthetic diamonds
DS200412-2083
2003
Wang, W., Moses, T., Linares, R.C., Shigley, J.E., Hall, M., Butler, J.E.Gem quality synthetic diamonds grown by a chemical vapor deposition ( CVD) method.Gems & Gemology, Vol. 39, Winter,pp. 268-283.TechnologySynthetic diamond
DS200512-0219
2003
Davis, J.The new diamond age. Armed with inexpensive mass produced gems, two startups are launching an assault on De Beers cartel.Wired Magazine, Issue 11.09 Sept. 8p.Diamond synthesis
DS200512-0333
2005
Gems & GemologyIn review - synthetic diamonds.. the best of Gems & Gemology on the subject of synthetic diamonds now available in one comprehensive research volume.Gems & Gemology, Vol. 41, 1, Spring p. 41 $ 49.95 gia.eduDiamond - synthesis
DS200512-0421
2005
Hemley, R.J.,Chun Chen, Y., Yan, C-S.Growing diamond crystals by chemical vapor deposition.Elements, Vol. 1, 2, March pp. 105-108.CVD, HP
DM200512-1456
2004
Idex OnlineEGL, USA publishes synthetic diamond booklet.Idex Online, Nov. 14, 1/2p.Booklet - guide HPHT, CVD
DM200512-1624
2005
Idex OnlineLab says it makes D flawless diamonds, but does it?Idex Online, Oct. 3, 1p.TechnologyNews item - lab-created diamonds, culture
DM200512-1976
2005
Rapaport NewsCVD breakthrough makes 10 carat diamond in hours. Dr. Richard Hemley Carnegie Institution's Geophysical Laboratory - commentsRapaport, May 20, 1/8p.Diamond synthesis
DM200512-2201
2005
Rapaport NewsSynthetics pose bold threat says Namdeb CEO.Rapaport, Oct. 7, 1/4p.GlobalNews item - synthetic diamonds
DS200512-0979
2004
Shigley, J. E., Breeding, C.M., Hsi-Tien Shen, A.An updated chart on the characteristics of HPHT grown synthetic diamonds.Gems & Gemology, Vol. 40, 4, Winter, pp. 312.Synthetic diamond identification
DS200612-0201
2006
Butler, J.E.Growth of CVD synthetic diamond.GIA Gemological Research Conference abstract volume, Held August 26-27, p. 34. 1/2p.TechnologyDiamond synthesis
DM200612-2018
2006
Diamonds.netDe Beers' Element Six raises dividend 450%.Diamonds.net, April 6, 1p.Europe, IrelandNews item - Element Six
DM200612-2019
2006
Diamonds.netDe Beers' Element Six targets $ 1 B in sales by 2010. Synthetic diamond applications.Diamonds.net, Oct. 11, 3p.GlobalNews item - Element Six
DM200612-2038
2006
Diamonds.netDicaprio could help polish up diamond culture. Ideal marketing tool for 'cultured diamonds'.Diamonds.net, July 4, 2p.GlobalNews item - Gemisis
DS200612-0421
2006
Galimov, E., Kudin, A., Skorobogatskii, V., Plotnichenko, V., Bondarev, O., Zarubin, B., Strazdovskii, V., Aronin, A., Fisenko, A., Bykov, I., Barinov, A.Experimental corrobation of the synthesis of diamond in the cavitation process.Doklady Physical Chemistry, Vol. 49, 3, pp. 150-153.TechnologyDiamond synthesis
DS200612-0440
2006
Geological Society of India Journal10 carat synthetic diamond.Journal of the Geological Society of India, Vol. 68, 1, p. 151. ( 1/4 p.)IndiaDiamond synthesis
DM200612-2351
2006
Idex OnlineSundance creates world's largest fancy pink enhanced diamond.Idex Online, May 25, 1/2p.TechnologyNews item - Sundance
DM200612-2355
2006
Idex OnlineThe law, ethics and the 'S' word. ( Synthetic)Idex Online, Oct. 10, 4p.GlobalSynthetic diamonds
DM200612-2508
2006
MinewebAmerica's Gemisis poses a diamond threat to De Beers.Mineweb, June 28, 2p.Africa, South AfricaNews item - Gemisis
DM200612-2509
2006
MinewebAmerica's Gemisis poses a diamond threat to De Beers.Mineweb, June 28, 2p.GlobalNews item - Gemisis
DS200612-1255
2006
Scott, K.The history and impact of synthetic diamond cutters on the oil and gas industry.Industrial Diamond Review, no. 1, pp. 48-55. Ingenta 1061360134GlobalDiamond synthetics - markets
DS200612-1508
2005
Wang, W., Tallaire, A., Hall, M.S., Moses, T.M., Achard, J., Sussmans, R.S., Gicquel, A.Experimental CVD synthetic diamonds form LIMPH-CNRD France.Gems & Gemology, Vol. 41, 3, Fall, pp. 234244.TechnologySynthetic diamonds
DS200712-0216
2006
David, C., Collins, A.T., Martineau, P.Defects in single crystal CVD synthetic diamond studied by optical spectroscopy with the application of uniaxial stress.Gems & Gemology, 4th International Symposium abstracts, Fall 2006, p.121-2, abstract onlyTechnologyCVD diamond
DS200712-0234
2006
Deljanin, B., Simic, D., Epeloym, M., Zaitsev, A.M.Study of fancy color and near colorless HPHT grown synthetic diamonds from advanced optical technology Co. Canada.Gems & Gemology, 4th International Symposium abstracts, Fall 2006, p.154-5. abstract onlyTechnologySynthetic diamonds
DM200712-1648
2007
Diamonds.netDiamond miners VS man-made diamonds. Brian Linares of Apollo Diamond.Diamonds.net, June 18, 2p.United StatesNews item - Apollo Diamond
DM200712-1649
2007
Diamonds.netTime Magazine: Diamonds De Novo. Apollo Diamonds.Diamonds.net, Feb. 1, 2p.United StatesNews item - Apollo Diamonds
DM200712-1815
2007
Diamonds.netElement Six increases turnover, pre-tax profits but finished '06 in the red. Sales of $ 332 million in 2006.Diamonds.net, Oct. 31, 1p.GlobalNews item - Element Six
DM200712-1848
2007
Diamonds.netGemesis Corporation joins cultured diamond foundation.Diamonds.net, Jan. 19, 1p.United States, FloridaNews item - Gemesis
DM200712-1849
2007
Diamonds.netGemesis's growth: pictures how it best.Diamonds.net, Sept. 7, 2p.United States, FloridaNews item - Gemesis
DM200712-1850
2007
Diamonds.netGemesis to supply Renaissance Diamond for new jewelry collection.Diamonds.net, May 29, 1/4p.United StatesNews item - Gemesis, Renaissance
DM200712-1860
2007
Diamonds.netIGI opens lab in Kolkata, India.Diamonds.net, Sept. 7, 1/2p.IndiaNews item - IGI
DM200712-1506
2007
DIB OnlineGemesis plans to expand its cultured diamonds plant.DIB Online, August 28. 1/2p.United States, FloridaNews item - Gemesis
DM200712-1507
2007
DIB OnlineTaryn Rose designs jewelery line using Gemesis lab grown diamonds.DB Online, Sept. 19, 1/4p.United States, FloridaNews item - Gemesis
DM200712-2135
2007
Financial PostLabs dull diamonds lustre. Upstart makers of synthetic gems hope to grab 20% of US $ 74 billion diamond market. Apollo Diamonds.Financial Post, June 15, p. FP7.TechnologyNews item - Apollo
DM200712-2153
2006
Gems & GemologyThe great synthetic diamond debate... brief overview of panelist's positions,Gems & Gemology, 4th International Symposium abstracts, Fall 2006, p.66-67. abstract onlyGlobalSynthetic diamonds
DM200712-2167
2007
Iafrica.comWas your diamond grown in a lab. Commentary by Gemesis CEO.Iafraca.com, Feb 26, 2p.TechnologyNews item - Gemesis
DS200712-0640
2007
Liu, Q.W.Synthetic diamond: possibily grown at higher temperatures.Gems & Gemology, Vol. 43, 1, p.53-4.TechnologyDiamond synthesis
DM200712-2583
2007
MiningmxSynthetic diamonds 5% of supply.Miningmx.com, Feb. 22, 1/8p.GlobalNews item - synthetic diamonds
DS200712-0976
2007
Shen, A.H., et al.Serenity coated coloured diamonds: detection and durability.Gems & Gemology, Vol. 43, 1, pp. 16-34.TechnologyDiamond synthesis - Serenity
DS200712-1140
2006
Welbourn, C.Identification of synthetic diamonds: present status and future developments.Gems & Gemology, 4th International Symposium abstracts, Fall 2006, p.34-5. abstract onlyGlobalSynthetic diamonds
DS200812-0129
2008
Boser, U.Diamonds on demand.Smithsonian, Vol. 39, 3, June pp. 52-59.TechnologyLab-grown diamonds, Appolo synthesis
DM200812-1795
2008
Diamonds.netGIA: Gems & Gemology winter issue features newest CVD synthetic diamonds.Diamonds.net, Jan. 21, 1/2p.GlobalNews item - Apollo
DM200812-1796
2008
Diamonds.netFake gems, genuine appeal ( precis of Smithsonian article).Diamonds.net, June 22, 1p.TechnologyNews item - Apollo Diamonds
DM200812-1930
2008
Diamonds.netElement Six makes senior appointment to seek investments. Grunewald.Diamonds.net, March 4, 1/2p.GlobalNews item - Element Six
DM200812-1961
2008
Diamonds.netGemesis exhibits fancy colour cultured diamond collection in Beverely Hills.Diamonds.net, Feb. 22, 1/4p.United States, FloridaNews item - Gemesis
DM200812-1975
2008
Diamonds.netNo misconception - lab created diamonds are distinguishable.Diamonds.net, July 17, 1/2p.TechnologyNews item - IGI
DM200812-2187
2008
Diamonds.netSundance Diamonds appoints Pope as Gen. manager.Diamonds.net, May 22, 1/4p.United States, UtahNews item - Sundance synthetic
DM200812-2322
2008
DIB OnlineElement Six hopes to double annual sales to US % 1 billion by 2013.Diamond Intelligence Briefs, July 8, 1/4p.GlobalNews item - Element Six
DM200812-2442
2008
DIB OnlineMexican scientists make diamonds from Tequila.Diamond INtelligence Briefs, Nov. 13, 1/2p.TechnologySynthetic diamonds
DS200812-0308
2008
Eaton-Magana, S.Hope diamond meets its match. Aurora Butterfly of Peace... coloured diamonds.The Loupe, Vol. 17, 3, summer, p. 1.United StatesTechnology - coloured diamonds
DM200812-2476
2008
Gems & Gemology Lab NotesFirst CVD synthetic diamond submitted for Dossier grading.Gems & Gemology, Vol. 44, 1, spring pp. 67-69.TechnologyCVD - graded
DM200812-2509
2008
Idex MagazineGIA examines the newest generation of Apollo CVD synthetic diamonds.Idex Magazine, July 14, 2p.TechnologyNews item - Apollo
DM200812-2525
2008
Idex MagazineElement Six.Idex Magazine, Nov. 8, 2p.GlobalSynthetic diamond markets
DM200812-2526
2008
Idex MagazineForever marketing synthetic gem-quality diamonds.Idex Magazine, Nov. 8, 2p.TechnologySynthetic diamond markets
DS200812-0574
2008
Kitawaki, H., Abduriyim, A., Okano, M.Identification of melee size synthetic yellow diamonds in jewelry.Gems & Gemology, Vol. 44, 3, pp. 202-213.TechnologySynthetics
DS200812-0617
2008
Kupriyanov, I.N., Paynamov, Yu.N., Kalinin, A.A., Sokol, A.G., Khokhryakov, A.F., Gusev, V.A.The effect of HPHT treatment on the spectroscopic features of type IIb synthetic diamonds.Diamond and Related Materials, Vol. 17, 7-10, pp. 1203-1206.TechnologyType IIb synthetics
DS200812-0657
2008
Li, L., Xu, B., li, M.Analysis of the carbon source for diamond crystal growth.Chinese Science Bulletin, Vol. 53, 6, pp. 937-942.TechnologyDiamond synthesis
DM200812-2624
2007
London Mining JournalWill synthetics outsparkle naturals?London Mining Journal, Dec. 7, pp. 22-25.GlobalOverview - synthetic markets
DS200812-1064
2008
Shushkanova, A.V., Litvin, Yu.A.Diamond formation in sulfide pyrrhotite carbon melts: experiments at 6.0-7.1 GPa and applications to natural conditions.Geochemistry International, Vol. 46, 1, pp. 37-47.TechnologyDiamond synthesis
DM200812-2886
2008
The Israeli Diamond IndustryWho's afraid of synthetic diamonds?israelidiamonds.co, October 7, 4p.GlobalNews item - synthtic diamonds
DS200812-1239
2007
Wang, W., Hall, W.S., Soe Moe, K., Tower, J., Moses, T.M.Latest generation CVD grown synthetic diamonds from Appollo Diamond Inc.Gems & Gemology, Vol. 43, 4, Winter pp. 294-312.TechnologyOverview of CVD
DS200812-1278
2008
Wyndham, C.Synthetic diamonds Armageddon or cultured bliss? Presented by WWW group Polishedprices.comBotswana Resource Conference held July 23-24., ppt presentation 10 slidesGlobalOverview - synthetic diamonds
DM200912-1479
2009
Diamonds.netLabor relations to hear from workers at Element Six.Diamonds.net, Jan. 21, 1/2p.Europe, IrelandNews item - Element Six
DM200912-1480
2009
Diamonds.netElement Six negotiates to save jobs.Diamonds.net, August 6, 1p.Europe, IrelandNews item - Element Six
DM200912-1481
2009
Diamonds.netElement Six to save over 240 jobs.Diamonds.net, August 9, 1p.Europe, IrelandNews item - Element Six
DM200912-1734
2008
Diamonds.netMcEwen to leave Gemesis.Diamonds.net, Dec. 8, 1/4p.United StatesNews item - Gemesis
DM200912-1855
2009
Idex OnlineJustice in the Antwerp diamond district.... AP Diamonds.Idex Online, April 30, 4p.Europe, BelgiumNews item - AP Diamonds
DM200912-1901
2009
Idex OnlineMore lay offs at Element Six.Idex Online, July 22, 1/2p.Europe, IrelandNews item - Element Six
DM200912-1938
2009
Idex OnlineCEN workshop revisited: 'not an official standard'.Idex Online, April 16, 3p.Global, EuropeNews item - synthetic diamond standards
DS200912-0692
2009
Shigley, J.E.Identifying synthetic and treated gem diamonds.PDAC 2009, 1p. abstractTechnologyDiamonds - treated and synthetic
DM201012-1414
2010
Diamonds.netDMIA confirms De Beers settlement rehearing begins in Feb.Diamonds.net, Oct. 28, 1/4p.United StatesNews item - DMIA
DM201012-1770
2010
G & G eBriefTreated CVD grown pink synthetic diamond submitted as natural.G & G eBrief, April 5, 1p.TechnologyCVD synthetic
DM201012-1779
2010
G & G eBriefIdentifying melee size yellow synthetic diamonds.G&G eBrief, August 3, 1/4p.TechnologyNews item - synthetics
DS201012-0231
2010
Gems & GemologyCVD synthetic diamond over one carat.Gems & Gemology Lab Notes, Vol. 46, 2, p. 143-144.TechnologyDiamond synthetics
DS201012-0225
2010
Gems & Gemology Lab notesRed CVD synthetic diamond with multiple treatments.Gems & Gemology, Vol. 46, 1, Spring pp. 52-53.TechnologySynthetic diamonds
DM201012-1836
2010
Idex OnlineGIA identifies carat plus CVD synthetic diamond.Idex Online, May 13, 1p.TechnologyNews item - Apollo
DS201012-0311
2010
Irifune, T., Isobe, F., Shinmei, T., Sanchira, T., Ohfuji, H., Kurio, A., Sumiya, H.Synthesis of ultrahard nano-polycrystalline diamond at high pressure and temperature using a large volume multianvil apparatus.International Mineralogical Association meeting August Budapest, abstract p. 182.TechnologyDiamond synthesis
DS201012-0355
2010
Khan, R.U.A., Martineau, P.M., Cann, B.L., Newton, M.E., Dhillon, H.K., Twitchen, D.J.Color alterations in CVD synthetic diamond with heat and UV exposure: implications for color grading and identification.Gems & Gemology, Vol. 46, 1, Spring pp. 18-27.TechnologyCVD synthetics
DS201012-0468
2010
Makeyev, A.B.Informative value of the diamonds' minerals - indicators study.International Mineralogical Association meeting August Budapest, abstract p. 185.RussiaDiamond - synthesis
DS201012-0548
2010
Ohfuji, H., Okimoto, S., Kunimoto, T., Irifune, T.Influence of graphite crystallinity on the microtexture of polycrystalline diamond obtained by direct conversion.International Mineralogical Association meeting August Budapest, abstract p. 182.TechnologyDiamond synthesis
DS201012-0562
2009
Palyanov, Y.N., Kupriyanov, I.N., Borzdov, Y.M., Sokol, A.G., Khokhryakov, A.F.Diamond crystallization from a sulfur - carbon system at HPHT conditions.Crystal Growth & Design, Vol. 9, 6, pp. 2922-2926.TechnologyDiamond synthesis
DS201012-0833
2010
Wang, W., Doering, P., Tower, J., Lu, R., Eaton-Magana, S., Johnson, P., Emerson, E., Moses, T.M.Strongly coloured pink CVD lab grown diamonds. A new generation of CVD lab-grown diamonds from Apollo Diamond Inc.Gems & Gemology, Vol. 46, 1, Spring pp. 4-17.TechnologyCVD Pink synthetics
DS201012-0834
2010
Wang, W., Moses, T.GIA Lab grades largest ( 4+ carat) HPHT grown synthetic diamond submitted to date.Gems & Gemology Lab Notes, Nov. 2. 1/4p.TechnologyDiamond synthesis
DM201112-1730
2011
Diamonds.netElement Six Ventures opens office in Silicon Valley.Diamonds.net, Oct. 10, 1/2p.United StatesNews item - Element Six
DM201112-1951
2011
Diamonds.netU.S. grants a process patent to Element Six. ( thick single diamond layer method for making it and gemstones produced from the layer).Diamonds.net, Feb. 18, 1/4p.TechnologyNews item - synthetics
DM201112-1952
2011
Diamonds.netMoses to present updates on synthetics and treatments in Gabarone.Diamonds.net, Feb. 15, 1/4p.TechnologyNews item - synthetics
DS201112-0356
2011
Gems & GemologyFluorescence contributes to strong pink colour in treated synthetic diamonds.Gems & Gemology Brief, Vol. 20, 10, 1/2p.TechnologySynthetic diamonds
DM201112-2104
2010
Idex OnlineGemesis goes white, to market directly to consumers.Idex Online, Nov. 30, 1p.United StatesNews item - Gemesis
DS201112-0485
2011
Johnson, P.Pink HPHT synthetic diamonds - a new coloration technique.GIA International Symposium 2011, Gems & Gemology, Summer poster abstract session p.133-4TechnologyDiamonds - synthesis
DM201112-2248
2011
London Mining JournalSynthetic diamonds ... manufacturing is being perfected.London Mining Journal Diamonds supplement, June p. 16 1/4p.TechnologyHistory - synthetics
DM201112-2383
2011
Mining.comDe Beers sets up synthetic diamond VC office in Silicon Valley.Mining.com, Oct. 10, 2p.United StatesNews item - Element Six
DS201112-0811
2011
Polyakov, S.N., Denisov, V.N., Kuzmin, N.V., Kuznetsov, M.S., Martyushov, S.Yu., Nosukhin, Terentiev, BlankCharacterization of top quality type IIa synthetic diamonds for new x-ray optics.Diamond and Related Materials, Vol. 20, no. 5-6m pp. 726-728.TechnologyDiamond - synthesis applications
DS201112-0934
2011
Schwander, M., Partes, K.A review of diamond synthesis by CVD processes.Diamond and Related Materials, Vol. 20, 9, pp. 1287-1301.TechnologyDiamond synthesis
DS201112-1115
2011
Willems, B., Tallaire, A., Barjon, J.Exploring the origin and nature of luminescent regions in CVD synthetic diamond.Gems & Gemology, Vol. 47, 3, fall pp. 202-207.TechnologySynthetic diamond
DS201201-0842
2011
G & G Lab notesGem quality CVD synthetic diamonds from Gemesis.Gems & Gemology, Vol. 47, 3, pp. 227-228.TechnologyGemesis CVD
DM201205-2756
2012
StockwatchDiamonds & specialty minerals summary April 11, 2012. HW, Scio, RenforthStockwatch, April 11, 2p.Canada, GlobalNews item - Scio
DM201206-1445
2012
Diamonds.netIGI finds hundreds of undisclosed synthetic diamonds at labs.Diamonds.net, May 21, 1p.GlobalNews item - synthetics
DM201206-1447
2012
Diamonds.netDiamond disclosures… synthetics.Diamonds.net, May 25, 2p.GlobalNews item - synthetics
DM201206-1454
2012
Diamonds.netScio Diamond completes first run CVD single crystal production. SyntheticsDiamonds.net, May 30, 1.4p.TechnologyNews item - Scio
DM201206-1455
2012
Diamonds.netDMIA calls for action to prevent synthetics from entering the market disguised as natural.Diamonds.net, May 30, 1/4p.GlobalNews item - DMIA
DM201206-1420
2012
DIB OnlineSynthetics specifically 'made to defraud' - Chaim Even-Zohar discussion.. Industry leadership contemplating strong response.Diamond Intelligence Briefs, Vol. 27, no. 709, May 21, 3p.GlobalNews item - synthetics
DM201206-1421
2012
DIB OnlineThe mystery of two Gemesis companies under one hat.Diamond Intelligence Briefs, Vol. 27, no. 709, May 21, 5p.Global, United StatesNews item - History - Gemesis
DM201206-1464
2012
Idex OnlineGemesis: it's not us, others sold inappropriately.Idex Online, May 22, 1p.GlobalNews item - Gemesis
DM201206-1470
2012
Idex OnlineShaking off the monkey .. SyntheticsIdex Online, May 31, 2p.GlobalNews item - synthetics
DM201206-1502
2012
Polished pricesDebswana looks at new deposit. DK7Polishedprices.com, May 8, 1p.Africa, BotswanaNews item - Element Six
DM201206-1515
2012
The Israeli Diamond IndustrySynthetics specifically 'made to defraud' - Antwerp IGI Lab discovers over 600 undisclosed synthetics - Chaim Even-Zohar discussionisraelidiamond.co.il, May 22, 4p.GlobalNews item - synthetics
DM201207-1547
2012
Diamonds.netDDC warns of impact from synthetics being sold as natural diamonds.Diamonds.net, June 6, 1/2p.GlobalNews item - synthetics
DM201207-1571
2012
Diamonds.netGIA addresses synthetic diamond concerns.Diamonds.net, June 28, 1p.GlobalNews item - synthetics
DM201207-1612
2012
The Israeli Diamond IndustryDMIA to fight non-disclosure of synthetic diamonds.israelidiamond.co.il, May 31, 1/2p.GlobalNews item - DMIA
DM201209-1847
2012
Diamonds.netScio deploys its Mosaic Diamond growth process.Diamonds.net, August 23, 1/4p.TechnologyNews item - Scio
DM201209-1865
2012
Idex OnlineLab diamond maker reaches 1,000 carat milestone, ships to customers.Idex Online, August 1, 1p.United StatesNews item - Scio
DM201211-2122
2012
Mining.comScio Diamond to raise shipments on record output.Mining.com, Oct. 2, 1/2p.TechnologyNews item - Scio
DM201211-2152
2012
Rough-PolishedScio ramps up production, shipments.rough-polished.com, Oct. 12, 1/4p.TechnologyNews item - Scio
DM201212-2260
2012
Diamonds.netElement Six acquires MegaDiamonds cutting tool business.Diamonds.net, Dec. 5, 1/2p.GlobalNews item - Element Six
DS201212-0179
2012
Eaton-Magana, S., D'Haenens-Johansson, U.F.S.Recent advances in CVD synthetic diamond quality.Gems & Gemology, Vol. 48, 2, summer pp. 124-127.TechnologySynthetics
DS201212-0180
2012
Eaton-Magana, S., D'Haenens-Johansson, U.F.S.Recent advances in CVD synthetic diamond quality.Gems & Gemology, Vol. 48, 2, Summer pp. 124-127.TechnologySynthetic diamonds
DS201212-0215
2012
G & G eBriefGemesis CVD grown synthetic diamonds characterized.Gems & Gemology Lab Notes, 1p.TechnologySynthetic diamonds
DS201212-0217
2012
G & G eBriefType Iib CVD synthetic diamond.G & G Brief, August 1/2p.TechnologyDiamond - synthetics
DS201212-0223
2012
G & G eBriefHPHT grown synthetic diamond - DiamondViewG & G Brief, Vol. 3, 4, Jan. 14, 1/2p.TechnologyDiamond synthesis
DS201212-0240
2012
GIA LabCVD synthetic diamonds identified in Hong Kong laboratory.G & G Brief, Vol. 3, 10, July 10, 1/4p.TechnologySynthetic diamonds
DS201212-0335
2012
Iverson, J.Transparency and synthetic diamonds.Gems & Gemology, Vol. 48, 2, summer 1p overviewTechnologySynthetics
DM201212-2324
2012
Rough-PolishedMellier appointed chairman of Element Six.rough-polished.com, Oct. 29, 1/4p.TechnologyNews item - Element Six
DS201212-0662
2012
Skalwold, E.Characterization of a synthetic nano-polycrystalline diamond gemstone.Gems & Gemology, Vol. 48, 3, pp. 188-192.TechnologySynthetics
DS201212-0664
2012
Skalwold, E.A., Renfro, N.,Shigley, J.E., Breeding, C.M.Characterization of a synthetic nano-polycrustalline diamond gemstone.Gems & Gemology, Vol. 48, 3, pp. 188-192.TechnologySynthetics
DS201212-0761
2012
Wang, W., D'Haenens-Johansson, U.F.S., Johnson, P., Moe, K.S., Emerson, E., Newton, M., Moses, T.M.CVD synthetic diamonds from Gemesis Corp.Gems & Gemology, Vol. 48, 2, summer pp. 80-97.TechnologyGemesis
DS201212-0762
2012
Wang, W., D'Haenens-Johansson, U.F.S., Johnson, P., Soe Moe, K., Emerson, E., Newton, M., Moses, T.M.CVD synthetic diamodns from Gemesis Corp.Gems & Gemology, Vol. 48, 2, Summer pp. 80-97.TechnologyGemesis
DS201212-0780
2011
Willems, B., Tallaire, A., Barjon, J.Exploring the origin and nature of luminescent regions in CVD synthetic diamond.Gems & Gemology, Vol. 47, 3, Fall, pp.TechnologySynthetics
DS201212-0832
2011
Zhonghua, S., Taijin, L., Meidong, S., Jun, S., Jingjing, S.High quality synthetic yellow orange diamond emerges in China.The Australian Gemmologist, Vol. 24, 7, July-Sept pp.TechnologySynthetics
DM201301-1052
2012
Diamonds.netElement Six acquires MegaDiamond' s cutting tool business.Diamonds.net, Dec. 5, 1/4p.TechnologyNews item - Element Six
DM201301-1061
2012
Idex OnlineGemesis CEO steps down: Company says realigned for growth.Idex Online, Dec. 20, 1/2p.United StatesNews item - Gemesis
DM201301-1086
2012
Rough-PolishedSupply of synthetic diamonds growing albeit blighted by cheating manufacturers.rough-polished.com, Dec. 13, 1p.TechnologyNews item - synthetics
DM201302-1156
2013
DIB OnlineApparent obstruction of justice in Gemesis synthetics fraud investigation - the evidence disappeared.DIB, No. 742, Jan. 17, 3p.United States, Europe, BelgiumNews item - Gemesis
DM201302-1202
2013
Mining.comDivision of De Beers working on diamond atoms: report.Mining.com, Jan 16, 1p.TechnologyNews item - Element Six
DM201302-1241
2013
Rough-PolishedDe Beers diamond execs shone at DMIA meeting.rough-polished.com, Jan. 25, 1/4p.United StatesNews item - DMIA
DM201303-1284
2013
Diamonds.netAG& J identifies synthetics melee mixed with natural diamonds.Diamonds.net, Jan. 29, 1p.TechnologyNews item - synthetics
DM201303-1291
2013
Diamonds.netScio Diamond appoints McMahon as CEO.Diamonds.net, Feb. 1, 1/4p.TechnologyNews item - Scio
DM201303-3191
2013
Florida Business ObserverCompany navigates rough road for sales. Gemesisreview.net, Jan. 31, 1p.United StatesNews item - Gemesis
DM201303-1396
2013
The Israeil Diamond IndustryElement Six boosts synthetic diamond production.israelidiamond.co.il, Feb. 5, 1/2p.United StatesNews item - Element Six
DM201304-1433
2013
Diamonds.netHollywood rolls out the red carpet for Gemesis diamonds.Diamonds.net, March 5, 1/2p.United StatesNews item - Gemesis
DM201305-1604
2013
Diamonds.netGemesis presents world largest, whitest lab-created diamond. 1.29 carat.Diamonds.net, April 23, 1/2p.United StatesNews item - Gemesis
DM201305-1607
2013
Frost & SullivanShaping future of diamond industry. Technology impact assessment.Frost & Sullivan, April 24, 28p. PdfGlobalNews item - synthetics
DM201305-1623
2013
Jeweller MagazineLab created diamond debate heats up. Jeweller Magazine, April, 1p.TechnologyNews item - Gemesis
DM201305-1643
2013
Rough-PolishedIndian industry leaders: chances of large scale entry of synthetics into market low.rough-polished.com, March 29, 1/2p.IndiaNews item - synthetics
DM201305-1710
2013
The Israeli Diamond IndustryIndians, Even-Zohar at odds over synthetic diamonds.israelidiamond.co.il, March 28, 1/4p.IndiaNews item - synthetics
DM201306-1756
2013
Diamonds.netDMIA reiterates commitment to U.S. diamond and jewelery business and global community.Diamonds.net, April 29, 1p.GlobalNews item - DMIA
DM201306-1867
2013
The Israeli Diamond IndustryDiamond group responds to leadership critique. DMIAisraelidiamond.co.il, April 29, 1p.United StatesNews item - DMIA
DM201307-1913
2013
Diamonds.netElement Six acquires assets, property of Group4 labs.Diamonds.net, May 29, 1p.GlobalNews item - Element Six
DM201307-1906
2013
DIB OnlineLet's stop kidding ourselves: Synthetic diamonds have invisibly integrated into our polished supplies: are we heading for industry suicide?Diamond Intelligence Briefs ( courtesy of Chaim), Vol. 28, no. 763, June 13, 8013-8018.TechnologyNews item - synthetics
DM201308-2158
2013
Rough-PolishedDiamond firm Element Six opens 20 mln lbs Oxfordshire building.rough-polished.com, July 5, 1/4p.Europe, United KingdomNews item - Element Six
DM201309-2237
2013
Diamonds.netM. Geller, Gemesis partner on distribution deal.Diamonds.net, August 2, 1/4p.GlobalNews item - Gemesis
DM201309-2250
2013
Idex OnlineSynthetic worries - are they justified?Idex Online, August 15, 1p.GlobalNews item - synthetics, markets
DM201310-2395
2013
Rough-PolishedEGL Asia starts issuing identification reports for lab grown diamonds.rough-polished.com, August 22, 1/4p.TechnologyNews item - synthetics
DM201310-2444
2013
Rough-PolishedSynthetic worries - are they justified?rough-polished.com, Sept. 16, 1/4p.GlobalNews item - synthetics
DM201311-2514
2013
Diamonds.netIGI spotlights synthetic identification, batch testing servicesDiamonds.net, Oct. 23, 1/4p.GlobalNews item - IGI
DM201311-2516
2013
Diamonds.netDealing with synthetics.Diamonds.net, Oct. 25, 1/4p.GlobalNews item - synthetics
DM201311-2519
2013
Idex MemoEvery week undisclosed synthetics are detected, and consequences are nearing.Idex Online, Oct. 24, 2p.GlobalNews item - synthetics
DM201311-2525
2013
Idex OnlineIGI stresses need for trusted synthetic identification services.Idex Online, Oct. 24, 1/4p.GlobalNews item - synthetics
DM201311-2613
2013
Rough-PolishedRussian physicists are struggling with fake diamonds. Lebedev Lab.rough-polished.com, Oct. 21, 1/4p.RussiaNews item - synthetics
DS201312-0209
2013
Diamond Intelligence BriefsA global synthetic plague: 'peppering the parcels'.Diamond Intelligence Briefs, Vol. 28, no. 779, Oct. 3, 2p.GlobalSynthetics
DS201312-0210
2013
Diamond Intelligence BriefsThe synthetic plague is becoming an epidemic. Another De Beers sightholder caught in the act.Diamond Intelligence Briefs, Vol. 28, no. 781, 3p.GlobalSynthetics
DM201312-2693
2013
Diamonds.netSignet acquires diamond polishing factory in Botswana.Diamonds.net, Nov. 13, 1/4p.Africa, BotswanaNews item - Signet
DS201312-0237
2013
E-BriefsCVD synthetic diamond with aggregated nitrogen impurities.G & G Brief, 1/2p.TechnologySynthetic diamonds
DS201312-0264
2012
Feral, K.Detecting HPHT synthetic diamond using a handheld magnet.Gems & Gemology, Vol. 48, 4, Winter pp. 262-272.TechnologySynthetic diamonds
DS201312-0268
2013
Filonenko, P.V., Zibrov, P.I., Petrovsky, A.V., Sukharev, E.A.Features of the formation of cubic BCN phase in comparison with natural and synthetic polycrystaline diamonds.European Journal of Mineralogy, Vol. 25, 3, pp. 373-383.TechnologyDiamond synthetics
DM201312-2704
2013
Idex MemoSetting the stage for lab-made diamonds' legitimate rise.Idex Online, Oct. 31, 1p.GlobalNews item - synthetics
DM201312-2709
2013
Idex OnlineGemesis, a major maker of gem-quality lab grown diamonds produces 1.78 Type 11a.Idex Online, Nov. 18, 1/2p.TechnologyNews item - Gemesis
DS201312-0539
2013
Liang, Q., Meng, Y., Yan, C., Krasnicki, S., Lai, J., Hemawan, K., Shu,H., Popov, D., Yu,T., Yang, W., Mao, H., Hemley, R.Developments in synthesis, characterization, and application of large high-quality CVD single crystal diamond.Journal of Superhard Materials, Vol. 35, 4, pp. 195-213.TechnologyDiamond synthetics
DS201312-0632
2013
Napoletani, D., Panza, M., Struppa, D.Artificial diamonds are still diamonds.Foundations of Science, Vol. 18, 3, pp. 591-594.TechnologySynthetics
DM201312-2730
2013
Rough-PolishedWFDB is concerned about undisclosed synthetic diamonds.rough-polished.com, Oct. 30, 1/4p.GlobalNews item - synthetics
DM201312-2750
2013
Rough-PolishedMartin Rapaport to address synthetic diamond crisis.rough-polished.com, Nov. 1, 1/4p.GlobalNews item - synthetics
DM201312-2754
2013
Rough-PolishedSynthetics create chaos in Indian diamond market.rough-polished.com, Nov. 6, 1/4p.IndiaNews item - synthetics
DM201312-2773
2013
Rough-PolishedKazakhstan will start producing diamonds 13 Ya "Yava" in Atyrau region.rough-polished.com, Nov. 12, 1/4p.Russia, KazakhstanNews item - synthetics
DM201312-2782
2013
Rough-PolishedDMIA urged industry players to meet on the problem of synthetic diamonds.rough-polished.com, Nov. 15, 1/4p.TechnologyNews item - synthetics
DM201312-2791
2013
Rough-PolishedEverything that sparkles is not a natural diamond.rough-polished.com, Nov. 19, 1/4p.TechnologyNews item - synthetics
DM201312-2795
2013
Rough-PolishedGIA makes synthetic diamond detection machines available to WFDB bourses.rough-polished.com, Nov. 22, 1/4p.GlobalNews item - synthetics
DS201312-0954
2012
Wang, W., D'Haenens-Johansson, U.F.S., Johnson, P., Soe Moe, K., Emerson, E., Newton, M.E., Moses, T.M.CVD synthetic diamonds from Gemesis Corp.Gems & Gemology, Vol. 48, , summer pp. 80-97.TechnologyGemesis
DM201401-1118
2013
Business MiningDe Beers takes the shine off synthetic diamonds. Not even call them diamondsbdlive.co.za, Dec. 3, 1p.TechnologyNews item - synthetics
DM201401-1264
2013
Diamonds.netMartin Rapaport addresses synthetic diamonds. 4 D's differentiation, detection, disclosure and documentationDiamonds.net, Dec. 4, 3p.GlobalNews item - synthetics
DM201401-1611
2013
Idex OnlineIndia opens synthetic diamond detection facility at BDB ( Bharat Diamond Bourse)Idex online, Dec. 8, 1/2p.IndiaNews item - synthetics
DM201401-1831
2013
Rough-PolishedDe Beers launches war of semantics on synthetic diamonds.rough-polished.com, Dec. 4, 1/4p.TechnologyNews item - synthetics
DM201401-1842
2013
Rough-PolishedThe DDRC inaugurated at Bharat diamond bourse…. Diamond Detection and Resource Centre)rough-polished.com, Dec. 9, 1/4p.IndiaNews item - synthetics
DM201402-1284
2013
Diamonds.netGJEPC investgators decend upon Surat to identify synthetic sources.Diamonds.net, Dec. 31, 1/4p.IndiaNews item - synthetics
DM201402-1289
2014
Diamonds.netIndia to code natural, artificial diamonds differently,Diamonds.net, Jan. 13, 1/4p.GlobalNews item - synthetics
DM201403-1989
2014
Rough-PolishedSynthetics: is it a threat or the future for the diamond industry? Inrealrough-polished.com, Feb. 24, 1p.GlobalNews item - synthetics
DM201404-1547
2014
Frost & SullivanCrown diamonds contributing steadily to the gems & jewellery industry, finds Frost & Sullivan.industrialautomation.frost.com, March, 28p. AvailableGlobalNews item - synthetics
DM201405-1799
2014
New York TimesWhen diamonds are dirt cheap, will they still dazzle? Technology allows perfect replicas of once rare and expensive things.New York Times, April 20, 2p.TechnologyNews item - synthetics
DM201406-2106
2014
Rough-PolishedCIBJO conference on synthetic diamonds sparks vigorous debate.rough-polished.com, May 21, 1/4p.GlobalNews item - synthetics
DM201407-1548
2014
Frost & SullivanGrown diamonds contributing steadily to the Gems & Jewellery industry. The diamond growing greenhouses Frost & Sullivan, May 29, 2p. Http://bit.ly/1mGnjd4TechnologyNews item - synthetics
DM201407-2157
2014
Rough-PolishedGrown diamonds gaining popularity in the jewellery industry - Frost & Sullivan.rough-polished.com, June 20, 1/4p.GlobalNews item - synthetics
DM201407-2496
2014
The Israeli Diamond IndustryStronger than diamond: a diamond within a diamond. 'onions' of carbon created at Yanshan University.israelidiamond.il.co, June 16, 1/4p.TechnologyNews item - synthetics
DM201408-1675
2014
India BusinessImport duty to increase to ease price differential for man-made diamonds.India Business, July 1, 1/4p.IndiaNews item - synthetics
DM201408-2175
2014
Rough-PolishedErnest Blom: WFDB " we do not see synthetic stones as a threat".rough-polished.com, June 23, 1p.TechnologyNews item - synthetics
DM201409-1197
2014
Creamers Mining WeeklySynthetics pose a conundrum for world diamond industry.Creamers Mining Weekly, July 31, 2p.GlobalNews item - synthetics
DM201409-2238
2014
Rough-PolishedPure Grown Diamonds creates a 3 carat grown diamond, the world's largest.rough-polished.com, Aug. 8, 1/4p.TechnologyNews item - Pure Grown
DM201410-1597
2014
Idex MemoUndisclosed synthetic diamonds 'shift' to finished set jewelry.Idex Online, Sept. 18, 5p.GlobalNews item - synthetics
DM201410-2282
2014
Rough-PolishedSynthetic stones and Winsome Group in the news again.rough-polished.com, Sept. 3, 1/4p.IndiaNews item - synthetics
DM201410-2297
2014
Rough-PolishedDiamond Services received the JNA award for innovation in diamonds detectionrough-polished.com, Sept. 19, 1/4p.Asia, ChinaNews item - Diamond Services
DM201410-2528
2014
The Israeli Diamond IndustrySynthetic diamonds - another way of thinking. ( Contaminated packages)israelidiamond.co.il, Sept. 22, 6p.GlobalNews item - synthetics
DM201411-1487
2014
Diamonds.netIIa Technologies receives ISO certification.Diamonds.net, Sept. 29, 1/4p.Asia, SingaporeNews item - synthetics
DM201411-1500
2014
Diamonds.netPure Grown Diamonds debuts 'Pure Champagne' collection. WebsiteDiamonds.net, Oct. 21, 1/4p.TechnologyNews item - Pure Grown Diamonds
DM201411-1248
2014
DIB OnlineUndisclosed synthetic diamonds 'shift' to finished set jewlery.Diamond Inteligence Briefs ( courtesy of Chaim), Vol. 29, 828, pp. 8820-8823. TechnologyNews item - Synthetics
DM201411-1665
2014
Idex OnlinePure Grown diamonds launching pink diamonds.Idex online, Oct. 22, 1/4p.TechnologyNews item - Pure Grown Diamonds
DS201412-0012
2014
Angus, J.C.Diamond synthesis by chemical vapor deposition: the early years.Diamond and Related Materials, Vol. 49, pp. 77-86.TechnologyCVD
DS201412-0185
2014
D'Haenens-Johansson, U.Near colorless CVD and HPHT synthetic gem diamonds - quality advances and identification methods.ima2014.co.za, AbstractTechnologySynthetics
DS201412-0186
2014
D'Haenens-Johansson, U.F.S., Soe Moe, K., Johnson, P., Yan Wong, S., Lu, R., Wang, W.Near-colorless HPHT synthetic diamonds from AOTC group.Gems & Gemology, Vol. 50, 1, Spring, pp. 30-45.TechnologySynthetic diamonds
DM201412-1503
2014
Diamonds.netRussia considers law on synthetics.Diamonds.net, Oct. 23, 1/4p.RussiaNews item - synthetics
DM201412-1519
2014
Diamonds.netSynthetics, liquidity are the biggest threats to the diamond industry. H. Goldie and Co.Diamonds.net, Nov. 2, 1/4p.GlobalNews item - synthetics
DM201412-1246
2014
DIB OnlineThe governance of Pure Grown diamonds… Phronesis strategies: the declared owner of the website.Diamond Intelligence Brief ( courtesy of Chaim), Vol. 28, no. 833, pp. 8873-4.TechnologyNews item - Pure Grown
DS201412-0275
2014
Gaubas, E., Ceponis, T., Jasiunas, A., Kalendra, V., Pavlov, J., Kazuchits, N., Naumchik, E., Rusetsky, M.Lateral scan profiles of the recombination parameters correlated with distribution of grown-in impurities in HPHT diamond.Diamond and Related Materials, Vol. 47, pp. 15-26.TechnologySynthetics
DS201412-0383
2014
Huang, Q., Yu, D., Xu, B., Hu, W., Ma, Y., Wang, Y., Zhao, Z., Wen, B., He, J., Liu, Z., Tian, Y.Nanotwinned diamond with unprecedented hardness and stability.Nature, Vol. 510, June 12, pp. 250-253.TechnologyDiamond synthetic
DM201412-1603
2014
Idex Memo11a Technologies: the murky path to "unlocking nature".Idex Online, Oct. 31, 2p.GlobalNews item - synthetics
DM201412-1679
2014
JCK OnlineRunning the numbers: how many lab-grown diamonds are there? Jewellery Export Promotion Council provided an in-depth study.JCKonline.com, Nov. 5, 2p.GlobalNews item - synthetics
DS201412-0613
2014
Narvekar, P.Lab-grown diamonds: a reality check.Solitaire International - the India Gem and Jewellery Magazine, Feb. pp. 55-59.TechnologySynthetic diamonds
DS201412-0807
2014
Shigley, J.E.Identification of treated and synthetic diamonds.6 Simposio Brasileiro de Geologia do Diamante, Aug. 3-7, 1p. AbstractTechnologySynthetics
DS201412-0963
2014
Wang, W.Carbon isotope analysis of CVD synthetic gem diamonds.ima2014.co.za, AbstractTechnologySynthetics
DS201412-0965
2014
Wang, Wuyi, D'Haenens-Johansson, U., Smit, K., Breeding, C.M., Stern, R.Carbon isotope analysis of CVD synthetic gem diamonds.Geological Society of America Conference Vancouver Oct. 19-22, 1p. AbstractTechnologySynthetics
DM201501-0458
2014
Bates, R.Believe it: the lab-grown diamond sector is out promoting the natural diamonds.jckonline.com, Dec. 12, 1p.TechnologyNews item - Pure Grown
DM201502-1022
2014
Rough-PolishedScio Diamond Technology gets $ 2.5 million growth funding.rough-polished.com, Dec. 24, 1/4p.TechnologyNews item - Scio
DM201502-1046
2015
Rough-PolishedAnalytics: Synthetic diamonds: response adequate to challenge.rough-polished.com, Jan. 14, 1p.TechnologyNews item - synthetics
DM201503-0807
2015
Idex MemoSynthetic diamond producer creates trade representative body prohibits the use of the 'S'-word.Idexonline.com, Feb. 12, 8p.TechnologyNews item - synthetics
DM201503-0905
2015
Mining ReviewThe lab grown diamond threat - a reality in 10-15 years?Mining Review.com, Feb. 20, 2p.TechnologyNews item - synthetics
DM201503-1073
2015
Rough-PolishedThe biggest polished synthetic diamond was created in Russia 10.31 IIa type.rough-polished.com, Feb 2, 1/4p.TechnologyNews item - synthetics
DM201504-0610
2015
Diamonds.netGIA & De Beers to speak on synthetic diamonds March 22. Panel discussion at GIADiamonds.net, Mar.3, 1/4p.United StatesNews item - synthetics
DM201504-0809
2015
Idex MemoUndisclosed lab-grown diamonds strike again. SuratIdex Online, Feb. 26, 1p.IndiaNews item - synthetics
DM201504-1153
2015
Rough-PolishedIia Technologies opens diamond green house in Singapore.rough-polished.com, Mar. 23, 1/4p.SingaporeNews item - synthetics
DM201506-0660
2015
Diamonds.netScio Diamond to double production levels. Diamonds.net, Apr. 27, 1/4p.TechnologyNews item - Scio
DM201507-1201
2015
Rough-PolishedWhat it will take for the synthetic diamond industry to be ( un) successful.rough-polished.com, May 27, 1/4p.TechnologyNews item - synthetics
DM201507-1213
2015
Rough-PolishedScio Diamond teams with Helzberg to test demand for lab-grown diamonds.rough-polished.com, June 4, 1/4p.TechnologyNews item - Scio Diamond
DM201507-1235
2015
Rough-PolishedIt's time to regulate - and rename - lab grown diamonds.rough-polished.com, June 23, 1/4p.TechnologyNews item - synthetics
DM201508-0713
2015
Diamonds.netScio revenue halves, loss narrows to $ 4 million.Diamonds.net, July 6, 1/4p.TechnologyNews item - Scio
DM201508-0724
2015
Diamonds.netNew synthetic detector to be shown at HK September show: Quick Take Diamonds.net, July 22, 1/4p.TechnologyNews item - Diamond Services
DM201508-1260
2015
Rough-PolishedThe three tipping points of Man-made diamonds.rough-polished.com, July 8, 1/4p.TechnologyNews item - synthetics
DM201509-0464
2015
BloombergWant to make a diamond in just 10 weeks? Use a microwave.bloomberg.com, Aug. 27, 2p.TechnologyNews item - synthetics
DS201509-0398
2015
Hainschwang, T., Notari, F.The first undisclosed colourless CVD synthetic diamond discovered in a parcel of natural melee sized diamonds.The Journal of Gemmology, Vol. 334, 6, pp. 518-522.TechnologySynthetics

Abstract: During the March 2015 Diamond Show in Basel, Switzerland, a parcel of 6,000 melee-sized colourless diamonds was analysed using the GGTL Diamond Fluorescence Imaging (DFI) Laser+ fluorescence imaging and spectroscopy system. From the entire parcel, one sample stood out clearly with unusual fluorescence colours and distribution, combined with a photoluminescence spectrum that clearly indicated it was a synthetic diamond grown by chemical vapour deposition (CVD).
DM201509-0796
2015
Idex MagazineDanger of product substitution…Idex Magazine, Aug. pp. 46-53.TechnologyNews item - Lab grown
DM201509-0797
2015
Idex MagazineLab-grown diamonds increase bargaining power.Idex Magazine, Aug. pp. 54-66.TechnologyNews item - synthetics
DS201509-0417
2015
Palyanov, Y.N., Borzdov, Y.M., Kupriyanov, I.N., Bataleva, Y.V., Khohkhryakov, A.F.Diamond crystallization from tin-carbon system at HPHT conditions.Diamond and Related Materials, Vol. 58, pp. 40-45.TechnologyDiamond synthetics

Abstract: Diamond crystallization from the tin–carbon system has been studied at 7 GPa and temperatures ranging from 1600 to 1900 °C with reaction times from 1 to 20 h. Both diamond growth on the seed crystals and diamond spontaneous nucleation were established, providing evidence for the catalytic ability of tin. A distinctive feature of the Sn–C system is the existence of a significant induction period preceding diamond spontaneous nucleation. Temperature and kinetics are found to be the main factors governing diamond crystallization process. The minimum parameters of diamond spontaneous nucleation are determined to be 7 GPa, 1700 °C and 20 h. The stable form of diamond growth is octahedron and it does not depend on temperature. Synthesized diamonds contain high concentrations of nitrogen impurities up to about 1600 ppm.
DM201509-1311
2015
Rough-PolishedZim establishes diamond cleaning facility.rough-polished.com, Aug. 12, 1/4p.Africa, ZimbabweNews item - laboratory
DS201510-1774
2015
Johnson, P., Moe, K.S., D'Haenens-Johansson, U., Rzhevskii, A.Discovery and distrbution of the [SI-V] defect in HPHT-grown gem quality diamonds.GSA Annual Meeting, Paper 300-12, 1p. Abstract only BoothTechnologySynthetic diamonds

Abstract: Defect of [Si-V]- is common in CVD synthetic diamonds, and its occurrence was also reported in some rare natural diamonds (Breeding and Wang, 2008). It is an important feature employed for gem diamond identification, and also has great potential for applications in industry. However little is known about how the silicon impurity gets into diamond lattice either in synthetic or natural diamonds. In this study, we discovered the occurrence of [Si-V]- in HPHT synthetic diamonds and the correlation between its precipitation and diamond growth sectors was successfully determined. Total 20 samples, HPHT grown diamond wafers from NDT (New Diamond Technology) were studied in addition to one type IIb HPHT synthetic diamond submitted to GIA Laboratory for grading. Distributions of defects in these samples were carefully mapped using infrared microscopy at room temperature and an imaging Raman microscope at liquid nitrogen temperature. Defect of [Si-V]- has doublet emissions at 736.6/736.9 nm (Clark et al., 1995), and can be effectively excited using 633 nm laser. Analyses were conducted at Liquid Nitrogen temperature as the detection of the Si related emissions peak is temperature dependent (Feng and Schwartz 1993). Additionally, the solvent catalysts used in the HPHT methods to grow synthetic diamond either intentionally or unintentionally contain nickel in varying quantities. Nickel impurity creates optical centers which emit a doublet peak at 882.6/884.3nm, and can be easily excited using 780 nm laser. The [SiV]- is clearly observed in only certain growth sectors of the synthetic crystal and the distribution is not homogeneous. By comparing the two acquired maps one acquired at 633nm excitation showing the [Si-V]- distribution and one acquired with 780nm excitation showing the nickel defect distribution, it was found that the [Si-V]- is confined to the same growth sector as Ni related defect with higher concentrations/intensity at the edges of these sectors. Since it is well known that the Ni defect is confined exclusively to the octahedral growth sectors {111} of diamond (Lawson et al., 1993), this study for the first time confirmed that [Si-V]- is confined to the {111} octahedral growth sectors. This new discovery leads to discussion as to the incorporation of silicon in diamond and the relationship to other impurities.
DM201510-2056
2015
London Mining JournalSynthetics' impact not clear-cut.London Mining Journal, Sept. 14, 1/2p.GlobalNews item - synthetics
DM201510-2081
2015
Rough-PolishedDharmanand an Research Centre introduces D-Secure for synthetics identification.rough-polished.com, Sept. 10, 1/4p.TechnologyNews item - Synthetics
DM201510-2084
2015
Rough-PolishedScio raises $ 1.6 million to fund synthetic diamond development.rough-polished.com, Sept. 11, 1/4p.TechnologyNews item - Scio
DS201511-1831
2015
Deljanin, B., Alessandri, M., Peretti, A., Astrom, M.NDT breaking the 10 carat barrier: world record faceted and gem-quality synthetic diamonds.Contributions to Gemology, Vol. 15, pp. 1-7.TechnologySynthetics

Abstract: The first small manufactured industrial diamonds were produced in 1953 by the Swedish company ASEA but their accomplishment went unannounced. In 1970, General Electric (GE) produced synthetic diamond crystals using the HPHT method with a belt type of press and created a 0.78ct polished RBC colorless diamond. In the 1980’s and 1990’s Russians used their own technology (“BARS” and “TOROID” high pressure apparatus (HPA) with high pressure presses of up to 25 MN load) to grow industrial and crystals up to 2.00ct in polished size, mostly orange to yellow in colour. In the last 15 years, companies including Lucent, Chatham, AOTC, Gemesis (now IIa Technologies) and many other producers in China, Germany, India, Russia, Ukraine, USA and Taiwan have improved the technology yet again and used their expertise to successfully grow diamond crystals that cut to 1.00ct up to 2.00ct in size. This “next generation” of diamonds exhibited high clarities (VS and VVS) and colours (D-H), as well as new blue and pink colours (after irradiation). Other companies (ref. 2-3) including Scio Diamonds, Washington Diamonds, Taidiam, PDC diamonds and Pure Grown Diamonds (selling arm of IIa technologies) are also using a very different technology/process of Chemical Vapour Deposition (CVD) to produce laboratory-grown diamonds up to 3.00 ct in size (table 1).
DM201511-2125
2015
Diamonds.netLab grown diamonds set to fill deficit as mined output declines.Diamonds.net, Sept. 29, 1/4p.GlobalNews item - synthetics
DM201511-2133
2015
Diamonds.netSynthetic diamonds: legitimize, don't ostracize.Diamonds.net, Oct. 15, 2p.TechnologyNews item - synthetics
DS201511-1840
2015
Harada, Y., Hishinuma, R., Terashima, C., Uetsuka, H., Nakata, K., Kondo, T., Yuasa, M., Fujishima, A.Rapid growth of diamond and its morphology by in-liquid plasma CVD.Diamond and Related Materials, in press available, 16p.TechnologySynthetics

Abstract: Diamond synthesis and its morphology by in-liquid plasma chemical vapor deposition (CVD) method are investigated in this study. Diamond films were grown on Si substrates from mixed alcohol solution. Very high growth rate of 170 ?m/h was achieved by this method. Microcrystalline and nanocrystalline diamond films were formed in different conditions. In the case of microcrystalline film, the shapes of diamond grains depend on the location in the film. All morphological differences in this study can be explained by the same mechanism of conventional gas phase CVD method. It means diamond morphology by in-liquid plasma CVD method can be controlled by process parameters as well as gas phase CVD method.
DM201511-2141
2015
Idex MemoIs banning lab-grown diamonds really a victory?Idex Online, Oct. 15, 1p.TechnologyNews item - synthetics
DM201511-2144
2015
Idex OnlineAlrosa developing lab-grown diamond screening technology.Idex Online, Oct. 15, 1/2p.TechnologyNews item - synthetics
DS201511-1854
2015
Kitawaki, H., Hisanaga, M., Yamamoto, M.Type 1b yellow to brownish yellow CVD synthetic diamonds seen at CGL.Journal of Gemmology, Vol. 34, 7, pp. 594-605.TechnologySynthetics

Abstract: In mid-2012, one of the international diamond grading laboratories in Antwerp reported undisclosed CVD synthetic diamonds, causing a stir in the diamond industry (Even-Zohar, 2012). Since then, reports of undisclosed CVD synthetics have also emerged from gem testing laboratories in India and China (D’ Haenens-Johanson et al., 2013; Song et al., 2014). Central Gem Laboratory (CGL) also reported on undisclosed over 1 ct size CVD synthetic diamonds (Kitawaki et al., 2013). Gem quality CVD products have been improved in their size and quality year after year, and a variety of colours have appeared. Most of the CVD synthetic diamonds reported previously are type II, however, recently some yellow CVD synthetic diamonds containing isolated substitutional nitrogen have been supplied to the gem market (Moe et al., 2014; Hainschwang, 2014). This report describes the gemmological features of fifteen yellow to brownish yellow type Ib CVD synthetic diamonds submitted to CGL without disclosure.
DS201511-1872
2015
Roskin, G.A.Synthetic gem quality diamonds: the product, the perception and the retailer.GemGuide, Vol. 34, 4, pp. 8-10.TechnologySynthetics
DM201511-2166
2015
Rough-PolishedIndia's BDB ( Bharat Diamond Bourse) in Mumbai has banned the trade in synthetic diamonds effective Otober 1.rough-polished.com, Oct. 5, 1/4p.IndiaNews item - synthetics
DM201511-2181
2015
Rough-PolishedSynthetic stones will not be considered precious stones in Russia - Moiseev.rough-polished.com, Oct. 15, 1/4p.RussiaNews item - synthetics
DM201511-2199
2015
Rough-PolishedLaboratory grown diamonds are now a fact of life for the industry. T. Moses ( GIA)rough-polished.com, Oct. 23, 1/4p.TechnologyNews item - synthetics
DS201511-1886
2015
Tarum, A., Lee, S.J., Yap, C.M., Finkelstein, K.D., Misra, D.S.Impact of impurities and crystal defects on the performance of CVD diamond detectors.Diamond and Related Materials, in press available, 6p.TechnologySynthetics - Radiation detectors

Abstract: Radiation detectors based on diamond are highly favored for particle physics research due to the superior radiation hardness. In this work, we investigate the influence of impurities and crystalline imperfections on the charge collection efficiency (CCE) of single crystal diamond. Seventeen (17) ultra-low fluorescent diamond samples grown by microwave plasma chemical vapor deposition method from IIa Technologies PTE LTD are pre-selected for this study. The measured CCE of all samples using 241Am (?-particles) as ionizing source are analyzed together with the concentration of trace impurities and crystalline imperfection in the crystal. The amounts of impurities are quantified from integrated fluorescence intensity arising from the nitrogen vacancies (NV) created during different CVD growth process conditions. The crystal imperfections are assessed by X-ray rocking curves from X-ray topography images obtained at the Cornell High Energy Synchrotron Source. The CCE decays rapidly as the intensity of NV (INV), phonon sideband approaches that of diamond 2nd order Raman peak which follows the relation: View the MathML sourceCCEINV=100/1+INV1.052. The energy resolution, ?E/E (ratio of the energy spectrum width to the most probable peak) highly correlates with broader rocking curve width distribution. Prime novelty statement: This work provides an understanding on the most important factors that contribute to degradation of charge collection efficiency (CCE) in diamond based detectors and sensors. The CCE decays rapidly as the intensity of nitrogen vacancy phonon sideband approaches that of diamond 2nd order Raman peak which follows the relation: View the MathML sourceCCEINV=100/1+INV1.052. The energy resolution, that is the ratio of the energy spectrum width to the most probable peak, highly correlates with broader X-ray rocking curve width distribution.
DS201511-1889
2015
Yap, C.M., Tarum, A., Xiao, S., Misra, D.S.MPCVD growth of 13 C-enriched diamond single crystals with nitrogen addition.Diamond and Related Materials, in press available, 29p.TechnologySynthetics - nitrogen

Abstract: This study describes the growth of 13C-enriched (100)-oriented diamond single crystals by the MPCVD (microwave plasma chemical vapour deposition) process. All crystals are at least 6 × 6 mm2 in area and 0.5-1.0 mm in thickness. The samples with nominal 13C percentages (R = [13C] / [13C + 12C]) of 0.011 (natural abundance), 0.10, 0.21, 0.24 and 0.34 were obtained by controlling the flow of the carbon-13 and carbon-12 methane feed gases. To obtain thicker and near-colourless quality 13C-enriched diamond, 190 ppm of nitrogen was added into the gas mixture. The shift towards lower frequency in the Raman peak positions and decrease in the thermal conductivities of the near-colourless crystals with increasing 13C percentages are similar to previous studies of isotopically-controlled diamond grown with no nitrogen additive. The images of the structural defects associated with 13C-enrichment obtained by spatially-resolved X-ray rocking curve measurement show distinct patterned structures that runs parallel to the < 100 > direction. Moreover, the broadening in the line width of the nuclear magnetic resonance (NMR) peak from sp313C correlates with increasing R. We also expand the study by injecting 500 ppm of nitrogen. Higher nitrogen concentration leads to the formation of brown crystals. The brown crystals show far greater 13C NMR peak intensity than the near-colourless. This suggests that paramagnetic nitrogen impurities in the brown crystals hasten the spin-lattice relaxation time of the 13C nuclear spin that resulted in higher intensity. The isotopic splitting observed for the localized vibrational mode of the NVH0 defect in brown crystals is attributed to the co-existence of both the 13C (3114.2 cm? 1) and 12C (3123.5 cm? 1). Unlike the isotopic splitting observed for NVH0 defect, the peak position of the Ns+ defect shifts towards lower frequency as R increases. Not only have we demonstrate the growth of bigger isotopically-controlled diamond single crystals, the results shown here have provided a framework to further investigate the interplay between 13C atoms and nitrogen impurity.
DS201511-1895
2014
Zhonghua, S., Taijin, L., Meidong, S., Jun, S., Jingjing, S.High quality synthetic yellow orange diamond emerges in China.Australian Gemmologist, Vol. 24, 7, pp. 167-170.ChinaSynthetics
DS201512-1910
2015
D'Haenens-Johansson, U.F.S., Katrusha, A., Moe, K.S., Johnson, P., Wang, W.Large colorless HPHT synthetic diamonds from new diamond technology. Using spectroscopic and gemological analysis.Gems & Gemology, Vol. 51, 3, pp. 260-79.TechnologySynthetics

Abstract: The Russian company New Diamond Technology is producing colorless and near-colorless HPHT-grown synthetic diamonds for the gem trade. Forty-four faceted samples synthesized using modified cubic presses were analyzed using a combination of spectroscopic and gemological techniques to characterize the quality of the material and determine the means of distinguishing them from natural, treated, and alternative laboratory-grown diamonds. These samples, with weights ranging from 0.20 to 5.11 ct, had color grades from D to K and clarity grades from IF to I2. Importantly, 89% were classified as colorless (D-F), demonstrating that HPHT growth methods can be used to routinely achieve these color grades. Infrared absorption analysis showed that all were either type IIa or weak type IIb, and photoluminescence spectroscopy revealed that they contained Ni-, Si-, or N-related defects. Their fluorescence and phosphorescence behavior was investigated using ultraviolet excitation from a long-wave/short-wave UV lamp, a DiamondView instrument, and a phosphorescence spectrometer. Key features that reveal the samples’ HPHT synthetic origin are described.
DM201512-2229
2015
Diamonds.netLab-grown diamond producer Scio's 2Q revenue doubles, net loss widens 8%.Diamonds.net, Nov. 17, 1/4p.TechnologyNews item - Scio
DM201512-2262
2015
Republic of Mining10 billionaires and Leonardo DiCaprio just invested in a start up that claims it can grow hundreds of real diamonds in 2 weeks. Diamond Foundrybusiness insider.com, Nov. 11, 2p.TechnologyNews item - synthetics
DM201512-2280
2015
Rough-PolishedUp to 3 billion carats of synthetic diamonds nourish jewelery market - media.rough-polished.com, Nov. 3, 1/4p.GlobalNews item - synthetics
DM201512-2317
2015
The India TimesA new Siberian ice diamond created by Russian scientists will prove to be a game changer for the domestic industry. Cost around 1- 2 % of real.TheIndiatimes.com, Nov. 16, 1/4p.RussiaNews item - synthetics
DM201512-2321
2015
The New York TimesBorrowing from solar and chip tech to make diamonds faster and cheaper. ( before Nanosolar) now Diamond FoundryThe New York Times, Nov. 11, 6p.TechnologyNews item - Diamond Foundry
DM201601-0066
2015
Diamonds.netDiamonds created at room temperature in North Carolin a State University lab. Q-carbonDiamonds.net, Dec. 1, 1/4p.United States, North CarolinaNews item - synthetics
DM201601-0110
2015
Rough-PolishedAfrica urged to sift synthetic diamonds out, call for Namibia to supply more rough diamonds locally.rough-polished.com, Dec. 1, 1/4p.Africa, NamibiaNews item - synthetics
DS201602-0217
2016
Lan, Y., Liang, R., Lu, T.Identification of a CVD synthetic diamond with a tree ring growth pattern.Journal of Gemmology, Vol. 34, 8, pp. 702-710.TechnologySynthetics
DM201602-0360
2016
Rough-PolishedIIa Technologies responds to Element Six patent infringement.rough-polished.com, Jan. 26, 1/4p.TechnologyNews item - Element Six
DM201603-0508
2016
Diamonds.netTechnical experts come together to launch the International Grown Diamond Association ( IGDA).Diamonds.net, Feb. 4, 1p.GlobalNews item - synthetics
DM201603-0522
2016
JckonlineAn open letter to Leonardo DiCaprio on lab grown diamonds.jckonline.com, Jan. 28, 1p.TechnologyNews item - synthetics
DM201603-0550
2016
Rough-PolishedStudy results on consumer perception lab-grown diamonds. Frost & Sullivanrough-polished.com, Jan. 26, 1/4p.TechnologyNews item - synthetics
DM201604-0672
2016
Diamonds.netGIA grades largest HPHT synthetic diamond to date. 5.03 blueDiamonds.net, Feb. 25, 1/4p.TechnologyNews item - synthetics
DS201605-0826
2016
D'Haenens-Johansson, U.Identification of treated synthetic diamonds.DCO Edmonton Diamond Workshop, June 8-10TechnologySynthetics
DM201605-0969
2016
Global Industry AnalysisSynthetic diamond market by manufacturing process and other end users.Global Industry Analysis, Apr. 21, 1p.GlobalNews item - synthetics
DM201605-0981
2016
RapaportFacing the lab-grown challenge.Rapaport Magazine, April 5p.TechnologyNews item - synthetics
DM201605-1026
2016
Sim, S.Diamond Detectives … gemologists: if it's lab-grown, we can detect it.Rapaport Magazine, Apr. 6p.TechnologyNews item - synthetics
DM201606-1138
2016
Bates, R.Can the natural and lab-grown diamond industries really get along?www.jckonline.com, May 5, 2p.TechnologyNews item - synthetics
DS201606-1127
2016
Wang, W., Moses, T.High pressure, high temperature ( HPHT) technology for gem diamond synthesis - progress.Gems & Gemology, Vol. 52, 1, p. 101-2.TechnologySynthetics

Abstract: High-pressure, high-temperature (HPHT) technology for gem diamond synthesis has made rapid progress in the last few years. It is now being used to produce many melee-size diamonds around 2-3 mm in diameter and large colorless single crystals, all with significantly improved quality and growth rate. One Russian company is reportedly growing multiple large, gem-quality colorless diamond crystals in a single run (U.F.S. D’Haenens-Johansson et al., “Large colorless HPHT-grown synthetic gem diamonds from New Diamond Technology,” Fall 2015 G&G, pp. 260-279). Here we report on large diamond crystals manufactured using a similar technology by Jinan Zhongwu New Materials Co. Ltd in Shandong, China. We visited the Chinese factory in early March 2016 and obtained 50 crystals (figure 1). The crystals were examined using the instrumentation and techniques applied to all diamonds submitted to GIA for grading; all exhibited the typical characteristics of HPHT growth and were identified as synthetic. These were basically colorless, with only a few metallic inclusions observed. These crystals showed typical cuboctahedral morphology, with well-developed {100}, {110}, and {111} growth sectors and a weakly developed {113} sector. The crystals we obtained ranged from about 0.5 to 1.2 ct each. Absorption spectra in the infrared region showed they were type IIa diamond, but trace absorption from boron was detected (2800 cm-1). Detailed gemological and spectroscopic analyses are ongoing and will be reported separately. According to the manufacturer, large quantities of gem-quality colorless and blue diamonds are produced in this factory, in sizes up to 3.5 ct each. While the total production volume remains unclear, it is undoubtedly significant, and capacity is likely to expand in the near future. This strongly suggests that even more large HPHT synthetic diamonds will be introduced into the jewelry industry.
DM201607-2539
2016
Diamond Intelligence BriefingDue Diligence score card: Supplier due diligence: The purity of Pure Grown Diamonds.DIB ( courtesy of Chaim), Vol. 32, 876, June 13, pp. 6-12.TechnologyNews item - synthetics
DM201607-2540
2016
Diamond Intelligence BriefingCan a Lab-Grown diamond be dirty? Yes it can!DIB ( courtesy of Chaim), Vol. 32, 876 June 13, pp. 13-14.TechnologyNews item - synthetics
DM201607-1534
2016
Rough-PolishedBotswana plots against synthetics, to up diamond manufacturing working hours.rough-polished.com, June 27, 1/4p.Africa, BotswanaNews item - synthetics
DM201608-1509
2016
Ehud Arye LaniadoDiamonds: not mined diamonds! Why we have to stop calling lab-grown products 'diamonds'.info @laniado.com, Aug. 8, 4p.TechnologyNews item - synthetics
DS201608-1403
2016
Fritsch, E.Are near colorless synthetic diamonds truly difficult to identify?GSA Annual Meeting, Abstract, 1p.TechnologySynthetics

Abstract: There is a rising number of near-colorless synthetics diamonds detected in the market, which create concerns for the trade. The recent advent of near-colorless melee size synthetic diamonds has raised the question of how to test large numbers of small stones. Many have turned to specialized sorting machines, which are expensive and difficult to evaluate. The problem arises only within near-colorless type IIa diamond gems. This type is commonly identified by infrared spectroscopy, which is man- or instrument-intensive. For the jeweler-gemologist, this can be identified by UV transparency, which isolates type IIa and also the even rarer type IaB from other types. Then amongst type IIas, one has to determine which are synthetic. One of the most effective sorting methods is anomalous double refringence (ADR) observing between crossed polarizers in a high-index immersion liquid. However, this method finds its limit with very small diameter stones, as then the optical pathlength is so small that no birefringence is perceived. Another approach is luminescence, based on observation of the whole stone; typically synthetics luminesce stronger in shortwave than longwave ultraviolet: this is effective to pinpoint HPHT-grown colorless and yellows, but useless for generally inert CVD-grown ones. Then the observation of luminescence zoning is usually conclusive. It necessitates expensive specialized instruments and also, a good knowledge of the very varied forms of natural diamond growth to avoid mistaking a natural for a synthetic. Finally, the last resort is luminescence spectroscopy. this typically involves laser excitation with several lasers, at low temperature. Further, this implies a very thorough knowledge of natural and synthetic diamond emissions, which limits this approach to a small number of laboratories. In practice, for a small number of stones, the definitive interpretation of spectra may remain a matter of discussion. Thus, the separation of natural from synthetic diamond mélé may appear very difficult. Yet, there are a limited number of simple devices which can help the jeweler-gemologist, even more the diamond professional. The last resort appears to be luminescence spectroscopy, but it is expensive and a great deal of interpretation is required. Automated instruments offer only limited help.
DM201608-1555
2016
RapaportTown Hall debate: an open discussion on lab-grown diamonds.Rapaport Magazine, July 2p.TechnologyNews item - synthetics
DM201608-1575
2016
Rough-PolishedLaboratory grown diamond sales triple. NPD group tracker project.rough-polished.com, July 1, 1/4p.GlobalNews item - synthetics
DM201608-1582
2016
Rough-PolishedSiberian scientists have developed technique to produce cheap artificial diamonds.rough-polished.com, July 5, 1/4p.RussiaNews item - synthetics
DM201608-1591
2016
Rough-PolishedGII inducts new instrument for detection of synthetic diamonds. rough-polished.com, July 14, 1/4p.IndiaNews item - synthetics
DS201608-1441
2016
Song, Z., Lu, T., Tang, S., Ke, J., Su, J., Gao, B., Bi, L., Wang, D.Identification of colourless HPHT grown synthetic diamonds from Shandong China.The Journal of Gemmology, Vol. 35, 2, pp. 14-147.ChinaSynthetics
DM201608-1630
2016
Treadgold, T.Diamonds disrupted: sales fall as synthetics rise.Forbes, June 31, 1p.TechnologyNews item - synthetics
DM201609-1793
2016
ReutersDe Beers stakes its reputation on spotting the difference ( synthetics).De Beers , Aug. 17, 3p.TechnologyNews item - synthetics
DM201610-1999
2016
Rough-polishedSynthetic diamonds pose a serious threat says ex-Botswana minerals minister.rough-polished.com, Aug. 31, 1/4p.Africa, BotswanaNews item - synthetics
DS201611-2098
2016
Babich, Yu.V., Feigelson, B.N., Chepurov, A.I.Manifestation of nitrogen interstitials in synthetic diamonds obtained usign a temperature gradient technqiue ( Fe-Ni-C system).Geochemistry International, Vol. 54, 10, pp. 992-927.TechnologySynthetics

Abstract: The IR-peak 1450 cm-1 (H1a-center) associated with nitrogen interstitials have been studied in nitrogen-bearing diamonds synthesized at high P-T parameters in the Fe-Ni-C system. FTIR study shows that manifestation of this nitrogen form is restricted to the regions of active transformation of C-defects into A-defects, which confirms the connection of its formation with C => A aggregation process. An examination of the dependence of the 1450 cm-1 peak on the degree of nitrogen aggregation indicates that H1a-centers are not only formed during C/A aggregation but also disappear simultaneously with the end of C => A transformation. Established facts suggest direct involving of nitrogen as interstitials in the C => A aggregation and serve as strong experimental argument in support of the "interstitial" mechanism of nitrogen migration during aggregation in diamonds containing transition metals.
DM201611-2224
2016
Rough-polishedCVD synthetic diamond over 5 carats identified by GIA.rough-polished.com, Oct. 17, 1/4p.TechnologyNews item - synthetics
DS201611-2140
2016
Shigley, J.E.Identifying lab grown diamonds. ReviewGIA, July 25, 18p.TechnologySynthetics - review
DM201612-2352
2016
Bates, R.Barneys and Diamond Foundry are making a big mistake with their lab-grown diamond line. Their use of non-FTC- approved descriptor is irresponsible.JCK Online memo, Nov. 11, 1p.TechnologyNews item - synthetics
DS201612-2296
2016
Eaton-Magana, S., Shigley, J.E.Observations on CVD-grown synthetic diamonds: a review.Gems & Gemology, Vol. 52, 3, pp. 222-245.TechnologySynthetics

Abstract: This article presents statistical data and distinctive features from several hundred faceted CVD-grown synthetic diamonds examined by GIA researchers from 2003 through June 2016. This study, the first comprehensive summary published on such a large number of gem-quality CVD synthetics, describes the reliable means of identifying them, with a focus on material currently marketed for jewelry use. Most CVD synthetic diamonds analyzed by GIA have been in the near-colorless or pink color ranges, with clarity grades comparable to those of their natural counterparts. Faceted CVD samples are generally 2 ct or less, though the sizes are increasing. They can be identified by their distinctive fluorescence pattern using the DiamondView imaging instrument, and by the detection of the silicon-vacancy defect using photoluminescence (PL) spectroscopy. Some visual gemological characteristics provide indicators, but not definitive proof, of CVD origin.
DM201612-2417
2016
NewsweekWhy diamonds could be about to lose their lustre.Newsweek Opinion, Nov. 13, 2p.TechnologyNews item - synthetics
DM201612-2428
2016
Republic of MiningMan made diamonds though more affordable, pose challenges on jewelers row.chicagotribune.com, Nov. 22, 1/4p.GlobalNews item - synthetics
DM201701-0162
2016
Weinstein, D.Lab-grown diamonds come into their own. International Gemological Institute Research Institute, Dec. 1, 5p.TechnologyNews item - synthetics
DM201702-0269
2017
CNNCan man made diamonds compete with the real deal?cnn.com, Jan. 16, 1/2p.GlobalNews item - synthetics
DM201702-0266
2017
Even-Zohar, C.The economics of lab-grown gem diamond mining.Diamond Intelligence Briefs ( noted only), DIB 883, Jan. 2, 8p.GlobalNews item - synthetics
DM201702-0304
2017
Idex OnlineSynthetic diamonds may replace GPS make driverless cars a reality… ( more sensitive).Idexonline.com, Jan. 2, 1/4p.TechnologyNews item - Synthetics
DM201703-0524
2017
Rough-polishedElement Six intends to move all production to sites in Ireland and South Africa.rough-polished.com, Feb. 1, 1/4p.Europe, Ireland, Africa, South AfricaNews item - Element Six
DM201703-0568
2017
Rough-polishedDiamond Services expands screening services for synthetic rough diamonds.rough-polished.com, Feb. 22, 1/4p.TechnologyNews item - Diamond Services
DM201703-0572
2017
The Israeli Diamond IndustryCould synthetic diamonds turn the dream of driverless cars into reality? ( sensitivity of magnetic waves could replace GPS systems).en.israelidiamond.co.il, Feb. 1, 1/2p.TechnologyNews item - Element Six
DM201704-0684
2017
Diamonds.netGIA finds significant undisclosed synthetics.Diamonds.net, March 7, 1/4p.TechnologyNews item - synthetics
DM201704-0699
2017
Even-Zohar, C.The economics of lab-grown gem diamond 'mining'.Idex Magazine, March No. 323, pp. 28-37.TechnologyNews item - Swaroski Diama
DS201704-0646
2017
Schmetzer, K., Gilg, H.A., Vaupel, E.Synthetic emeralds grown by Richard Nacken in the mid-1920's: properties, growth technique, and historical account.Gems & Gemology, Vol. 52, 4, pp. 368-392.Europe, GermanySynthetic - emeralds

Abstract: Chemical and microscopic examination of the first gem-quality synthetic emeralds of facetable size proves that Prof. Richard Nacken grew two main types of emerald by flux methods in the mid-1920s. One of these two types, grown with colorless beryl seeds in molybdenum-bearing and vanadium-free fluxes, has not previously been mentioned in the literature and would appear to be unknown to gemologists. The other main type, which has already been described in gemological publications, was grown from molybdenum- and vanadium-bearing fluxes. In drawing these conclusions, rough and faceted synthetic emeralds produced by Nacken were available for study from two principal sources: the Deutsches Museum in Munich, to which Nacken had donated samples in 1961, and family members who had inherited such crystals. Chemical, morphological, and microscopic properties are given, and circumstances concerning the developmental history of the Nacken production, including the possibility of collaboration with IG Farben (a subject of past speculation), are discussed as well. The latter has recently been elucidated by the discovery of original documents from the IG Farben gemstone plant, preserved in the Archives of the German Federal State of Saxony-Anhalt.
DS201705-0813
2017
Butler, J.E., Feigelson, B.N.Laboratory-Grown Diamonds.lithographie.org, No. 19, pp. 114-127.TechnologyBook - synthetics
DS201705-0822
2017
Collins, A.T.Comment on the apparent anomalous reflectance of a Sumitomo synthetic diamond.Journal of Gemmology, Vol. 35, 5, p. 450.TechnologySynthetics
DM201705-0947
2017
Idex onlineSynthetic gem production 4.2m carats, says Indian study.idexonline.com, April 17, 1/4p.IndiaNews item - synthetics
DM201705-0990
2017
Rough-polishedSignet unveils details on synthetic diamond detectors testing.rough-polished.com, April 10, 1/4p.TechnologyNews item - Signet
DM201705-1005
2017
Rough-polishedHot topic in Geneva: the issue of synthetic diamonds in watchmaking.rough-polished.com, April 25, 1/4p.TechnologyNews item - synthetics
DM201705-1016
2017
Rough-polishedReport from Mordor intelligence on global synthetic diamond market.rough-polished.com, April 29, 1/4p.GlobalNews item - synthetics
DM201706-1169
2017
Ehud Arye LaniadoThe history of Lab grown diamonds.info @laniado.com, May 17, 3p.TechnologyNews item - synthetics
DM201706-1242
2017
The Israeli Diamond InstituteSynthetics seen as existential threat.israeli diamond institute.co.il, May 3, 20p.GlobalNews item - synthetics
DM201707-1445
2017
Ehud Arye LaniadoThe history of lab grown diamonds: industrial applications.info @laniado.com, June 1, 3p.TechnologyNews item - synthetics
DM201707-1448
2017
Ehud Arye LaniadoThe history of lab grown diamonds: retail.info @laniado.com, June 7, 3p.TechnologyNews item - synthetics
DM201707-1452
2017
Even-Zohar, C.Pure grown diamonds: quo vadis? Indian indictments might reverberate on IIa Technologies and its products. Potential imbriglio for U.S. stakeholders: distributors, retailers and consumers.Diamond Intelligence Briefing, Vol. 33, no. 889-990, May 10. * by permissionIndia, globalNews item - synthetics
DM201708-1833
2017
Diamonds.netGIA finds baffling flaw in CVD diamond.Diamonds.net, July, 2, 1/2p.TechnologyNews item - synthetics
DM201708-1835
2017
Diamonds.netScio Diamond to up synthetics production.Diamonds.net, July 13, 1/4p.United States, South CarolinaNews item - Scio
DM201709-2108
2017
Diamonds.netDiamond Foundry opens synthetics store ( San Francisco)diamonds.net, Aug. 17, 1/4p.United StatesNews item - Diamond Foundry
DM201709-2120
2017
Mining.comScientists from Brazilian Universidade Federal de minas Gerais found new evidence that shows diamonds can be forged in thin films called diamondene.mining.com, Aug. 1, 1/2p.TechnologyNews item - diamondene
DM201709-2162
2017
Rough-polishedA brilliant future of lab diamonds - media.rough diamond.com, Aug. 22, 1/4p.GlobalNews item - synthetics
DM201710-2323
2017
Diamonds.netMost retailers won't sell synthetics anytime soon.diamonds.net, Sept. 5, 1/4p.GlobalNews item - synthetics
DM201710-2345
2017
ForbesDiamonds disrupted: how man-made diamonds will disrupt the mined diamond industry.Forbes.com, Sept. 2, 5p.GlobalNews item - synthetics
DM201710-2425
2017
Rough-polishedDTCB says new synthetic diamonds detecting device to boost consumer confidence.roughdiamond, Sept. 21, 1/4p.Africa, BotswanaNews item - SYNTHdetect
DM201710-2450
2017
Zimnisky, P.The future challenges of synthetics.Zimnisky.com, Oct. 3, 2p.TechnologyNews item - synthetics
DM201712-2785
2017
Diamonds.netGIA finds synthetic diamond with forged inscription.diamonds.net, Nov. 13, 1/4p.TechnologyNews item - synthetics
DS201712-2684
2017
Eaton-Magana, S., Shigley, J.E., Breeding, C.M.Observations on HPHT-grown synthetic diamonds: a review.Gems & Gemology, Vol. 53, 3, pp. 262-285.Technologysynthetics

Abstract: his article presents statistical data and distinctive features for several thousand HPHT-grown synthetic diamonds examined by GIA from 2007 through 2016. This study, the first comprehensive summary published on such a large number and wide variety of samples, describes the reliable means of identifying them, with a focus on material currently marketed for jewelry use. The color of HPHT synthetic diamonds analyzed by GIA has shifted noticeably during this time—in the early years, orange-yellow, yellow, and yellow-orange samples comprised the overwhelming majority, while colorless and blue samples are much more prevalent today. HPHT synthetics are making inroads into the large diamond market, with cut stones larger than 10 carats, as well as the colorless melee market, where small HPHT synthetics are being mass-produced in China. HPHT synthetics can be identified by their distinctive fluorescence patterns using the DiamondView luminescence imaging instrument, the lack of “strain” (anomalous birefringence) when viewed through crossed polarizers, and to a lesser extent by the detection of various features in photoluminescence (PL) spectroscopy. This material may also display magnetism and a short-wave fluorescence and phosphorescence reaction that are inconsistent with similarly colored natural diamonds.
DM201712-2801
2017
Financial Times of LondonBackgrounder on Amish Shah and laboratory diamond sales.financialtimes.com, Nov. 1, 4p.GlobalNews item - synthetics
DM201801-0124
2017
ForbesThe diamond marketer leading the fight against lab-grown stones. NOT diamonds Lieberherr CEO of DPAForbes, Dec. 14, 2p.GlobalNews item - synthetics
DS201802-0225
2018
Chen, N., Ma, H., Chen, L., Yan, B., Fang, C., Liu, X., Li, Y., Guo, L., Chen, L., Jia, X.Effects of S on the synthesis of type 1b diamond under high pressure and high temperature.International Journal of Refractory Metals & Hard Materials, Vol. 71, pp. 141-146.Technologysynthetic diamonds
DM201802-0361
2018
Rough-polishedGlobal synthetic diamonds market is estimated to be worth $ 28.26 bn by 2024.rough-polished.com, Jan. 12, 1/4p.GlobalNews item - synthetics
DM201803-0493
2018
AllafricaDiamond mining under threat: synthetics.allafrica.com, Feb. 8, 1/4p.GlobalNews item - synthetics
DM201803-0557
2018
Mining.mxMillenials being lied to by synthetic diamond manufacturers.miningmx.com, Feb. 6, 1/4p.GlobalNews item - synthetics
DM201803-0589
2018
Rough-polishedWe take threat from synthetic diamonds seriously - Namibian official.rough-polished, Feb. 8, 1/4p.Africa, NamibiaNews item - synthetics
DM201804-0783
2018
Creamers Mining WeeklyRising synthetic diamond output lifts discount to natural stones.creamersmining weekly.com, Mar. 22, 1/4p.GlobalNews item - synthetics
DS201804-0684
2018
D'Haenens-Johansson, U.Synthesis of man-made gem diamonds and their detection.4th International Diamond School: Diamonds, Geology, Gemology and Exploration Bressanone Italy Jan. 29-Feb. 2nd., p. 16. abstractTechnologysynthetics
DM201804-0794
2018
Diamonds.netIGI Launches Synthetics Screening Centerdiamonds.net, Mar. 21, 1/4p.IndiaNews item - synthetics
DM201804-0813
2018
London Mining JournalLab-created diamond prices on the wane.mining journal.com, Mar. 19, 1/4p.GlobalNews item - synthetics
DM201804-0877
2018
Rough-polishedMGCJ to launch portable synthetic diamond identification kit.rough-polished .com, Mar. 26, 1/4p.GlobalNews item - synthetics
DM201804-0884
2018
Zimnisky, P.Paul Zimnisky: the price of lab created diamonds continue to fall.paul.zimnisky.com, Mar. 22, 1p.GlobalNews item - synthetics
DM201805-1128
2018
Rough-polishedMGCJ founder Branko Deljanin: production of synthetic diamonds is still larger than consumption.rough-polished, Apr. 9, 3p.GlobalNews item - synthetics
DM201805-1137
2018
Rough-polishedHPHT grown diamonds treated with irradiation can escape detection as synthetics.rough-polished, Apr. 18, 1/4p.TechnologyNews item - synthetics
DM201805-1142
2018
Rough-polishedHDGR challenges alert by Hong Kong company on irradiation treated HPHT grown diamonds.rough-polished, Apr. 19, 1/4p.TechnologyNews item - synthetics
DM201805-1144
2018
Rough-polishedThe production of synthetic diamonds continues to grow.rough-polished, Apr. 19, 1/4p.TechnologyNews item - synthetics
DM201805-1151
2018
Rough-polishedZimnisky: hard to protect lab diamond price as production methods, economics improve.rough-polished, Apr. 23, 1p.GlobalNews item - synthetics
DS201805-0990
2018
Wang, H.A.O., Cartier, L.E., Baumgartner, L.P., Bouvier, A-S., Begue, F., Chalain, J-P., Krzemnicki, M.S.A preliminary SIMS study using carbon isotopes to separate natural from synthetic diamonds.Journal of Gemmology, Vol. 36, 1, pp. 38-43.Technologysynthetics
DS201806-1209
2018
Ardon, T., Ahline, N.Fancy deep brown-orange CVD synthetic diamond. 0.56 ctGems & Gemology, Vol. 54, 1, p. 64Technologysynthetics
DM201806-1318
2018
Diamond World MagazineAmericans do not consider diamond created in a factory: only natural diamonds are real.diamond world magazine.com, May 24, 1/4p.United StatesNews item - synthetics
DM201806-1324
2018
Diamonds.netBuffett store (Borheims) to sell world's largest pink synthetic.diamonds.net, May 9, 1/4p.United StatesNews item - synthetics
DM201806-1332
2018
Diamonds.net9 ct synthetic stone sets world record. WD Lab growndiamonds.net, May 29, 1/4p.GlobalNews item - synthetics
DS201806-1221
2018
Eaton-Magana, S.Five CVD synthetics greater than three carats: quality factorsGems & Gemology, Vol. 54, 1, p. 63.Technologysynthetics
DM201806-1380
2018
Republic of MiningMillenial attitudes are forcing a massive change in the diamond industry.businessinsider, May 10, 1/4p.GlobalNews item - synthetics
DM201806-1383
2018
ReutersThe techno-whiz who grows gem-quality diamonds. ShahCrainsbusiness, May 3, 1/4p.United StatesNews item - synthetics
DM201807-1595
2018
Diamonds.netDiamond Foundry lauds De Beers synthetics bid.diamonds.net, June 3, 1/4p.United StatesNews item - Diamond Foundry
DM201807-1597
2018
Diamonds.netGIA to hold synthetics detection seminars.diamonds.net, June 6, 1/4p.United StatesNews item - synthetics
DM201807-1607
2018
Ehud Arye LaniadoDe Beers shakes industry foundations Lab-Grown initiative. Lightboxinfo @laniado.com, June 4, 3p.GlobalNews item - Lightbox
DS201807-1492
2018
GIADr. D. Twitchen ( CVD Element Six) discussion using magnetic resonance and optical techniques to study how defects in diamond affect colour and electrical conductivity. Keynote speakerGIA Symposium , Oct. 7-9, Carlsbad CA United States, Californiasynthetics
DM201807-1616
2018
Idex onlineDe Beers causes waves with new lab-grown diamond jewelry.idexonline.com, June 1, 3p.GlobalNews item - Lightbox
DM201807-1617
2018
Idex onlineDe Beers lab-grown diamond jewelery plans causing industry waves.idexonline.com, June 5, 1/2p.GlobalNews item - synthetics
DM201807-1623
2018
London Mining JournalThey are low cost, pretty stones. De Beers Group and lab made synthetic sector.miningjournal, May 3, 1/4p.GlobalNews item - Element Six
DM201807-1626
2018
MarketbizGlobal man made diamond market share 2018 -2025. Element Six, Henan Huanghe, Whirlwind, CR Gems Diamond, Jinqu Chaouing and Zhengzhou Sino-crystalmarketbiz.com, June 13, 3p. SummaryGlobalNews item - synthetics
DM201807-1646
2018
ReutersBotswana strikes deal with De Beers over synthetic diamonds. Govt engaged throughout the De Beers synthetics initiative.journaldu cameroun.com, June 25, 1/4p.Africa, BotswanaNews item - Lightbox
DM201807-1654
2018
Rough-polishedZimnisky on De Beers' Lightbox: it’s a strategic bold move that will benefit the entire natural diamond industry. Interview and commentsrough-polished, June 1, 2p.GlobalNews item - Lightbox
DM201807-1674
2018
Rough-polishedOpsydia to mark Lightbox synthetic diamonds. Laser technologyrough-polished, June 18, 1/4p.GlobalNews item - Lightbox
DM201807-1693
2018
The Israeli Diamond IndustryLaniado : De Beers' lab grown initiative - an earthquake.israelidiamond industry.co.il, June 11, 1p.GlobalNews item - Lightbox
DM201807-1696
2018
Zimnisky, P.The price of lab-created diamonds continue to fall. Synthetics manufacturers eye high-tech market.Diamonds in Canada, June pp. 15-18.GlobalNews item - synthetics
DS201808-1733
2018
Choudary, G.Investigating a fake rough. Mentions cubic zirconium, topaz as diamond octahedrons on. P. 28.Gems & Jewellery, Vol. 27, 2, pp. 26-29.Technologydiamond - fake
DM201808-1846
2018
Diamonds.netGIA grades largest lab grown pink. 5.01 ctdiamonds.net, July 4, 1/4p.United States, CaliforniaNews item - synthetics
DM201808-1857
2018
Diamonds.netNew US Federal Trade Commission guidelines still require full disclosure for synthetic diamonds.diamonds.net, July 27, 1p.United StatesNews item - synthetics
DM201808-1867
2018
Idex MemoFTC's revised guides stoke up flames between natural and synthetic diamond sectors.idexonline.com, July 26, 1p.United StatesNews item - synthetics
DS201808-1756
2018
Kaboli, S., Burnley, P.C.Direct observations of crystal defects in polycrystalline diamond. CVDMaterials Characterization, Vol. 142, pp. 154-161.Globalsynthetics

Abstract: Crystal defects are abundant in synthetic diamond produced by chemical vapor deposition (CVD). We present the first images of crystal defects in a bulk polycrystalline CVD diamond sample using general electron channeling contrast imaging (ECCI) in a field emission scanning electron microscope (FE-SEM). For enhancement of channeling contrast of this material, we introduce a novel protocol for diamond surface preparation that involves acid etching. Using this protocol, we imaged three types of crystal defects including twins, stacking faults and dislocations. Each defect was identified based on its appearance in electron channeling contrast (ECC) micrographs. We analyzed grains containing twins and dislocations using electron backscatter diffraction (EBSD) crystal orientation mapping. We found a large population of grains that contained ?3 type twins on {111} planes with a 60°?111? angle-axis pair of misorientation for twin boundaries. In addition, we identified {111} stacking faults and {111} helical dislocations. These observations are in agreement with reports of crystal defects in CVD diamond thin foils studied by a transmission electron microscope (TEM).
DM201808-1902
2018
ReutersDe Beers breaks ground on $ 94 m lab grown diamond plant in Oregon scheduled to produce 0.5 mcts of CVD diamonds for Lightbox jewelery.reuters.com, June 30, 1/4p.United States, OregonNews item - Lightbox
DS201808-1785
2018
Rose, B.C. ,Huang, D., Zhang, Z-H., Stevenson, P., Tyryshkin, A.M., Sangtawesin, S., Srinivasan, S., Loudin, L., Markham, M.L., Edmonds, A.M., Twitchen, D.J., Lyon, S.A., de Leon, N.P.Observation of an environmentally insensitive solid-state spin defect in diamond.Science , Vol. 361, July 6, p. 60-63.Technologysynthetic

Abstract: Engineering coherent systems is a central goal of quantum science. Color centers in diamond are a promising approach, with the potential to combine the coherence of atoms with the scalability of a solid-state platform. We report a color center that shows insensitivity to environmental decoherence caused by phonons and electric field noise: the neutral charge state of silicon vacancy (SiV0). Through careful materials engineering, we achieved >80% conversion of implanted silicon to SiV0. SiV0 exhibits spin-lattice relaxation times approaching 1 minute and coherence times approaching 1 second. Its optical properties are very favorable, with ~90% of its emission into the zero-phonon line and near -transform-limited optical linewidths. These combined properties make SiV0 a promising defect for quantum network applications.
DS201808-1792
2018
Tang, S., Su, J., Lu, T., Ma, Y., Ke, J., Song, Z., Zhang, S., Liu, H.A thick overgrowth of CVD synthetic diamond on a natural diamond.Journal of Gemmology, Vol. 36, 2, pp. 134-141.Technologysynthetics

Abstract: In October 2017, a natural diamond overgrown by a thick layer of CVD synthetic diamond was identified at the Beijing laboratory of the National Gemstone Testing Center (NGTC). The round-brilliant-cut sample was near-colourless and weighed 0.11 ct. No sign of the overgrowth was observed with magnification. However, DiamondView images showed a distinct boundary in the pavilion separating layers of different luminescence: The upper layer displayed red fluorescence with greenish blue phosphorescence, while the lower portion showed deep blue fluorescence and no phosphorescence. Infrared spectroscopy revealed that the upper layer was type IIa and the lower portion was type Ia. Ultraviolet-visible-near infrared (UV-Vis-NIR) spectroscopy recorded an unusual co-existence of the N3 centre at 415 nm together with absorption due to [Si-V]-defects at 737 nm. The photoluminescence (PL) spectrum confirmed a high level of [Si-V]-defects. The approximate thickness of the CVD synthetic layer was ~740 µm, which is much thicker than previously reported for such overgrowths. The presence of the N3 centre in the natural diamond layer caused this sample to be passed as natural by various screening instruments. Luminescence imaging is key to identifying such overgrowths, and should be relied upon more heavily in the screening procedures used by gemmological laboratories in the future.
DS201808-1793
2018
Temming, M.Designer diamonds could one day help build a quantum internet. Overview (see Rose reference)Science News, July 6, 1p.Globalsynthetic

Abstract: A new kind of artificial diamond is a cut above the rest for quantum memory. Unlike other synthetic diamonds, which could either store quantum information for a long time or transmit it clearly, the new diamond can do both. This designer crystal, described in the July 6 Science, could be a key building block in a quantum internet. Such a futuristic communications network would allow people to send supersecure messages and connect quantum computers around the world (SN: 10/15/16, p. 13). Synthetic diamond can serve as quantum storage thanks to a type of flaw in its carbon lattice, where two neighboring carbon atoms are replaced with one noncarbon atom and an empty space (SN: 4/5/08, p. 216). This pairing exhibits a quantum property known as spin, which can be in an "up" state, a "down" state or both at once. Each of those states reflects a bit of quantum data, or qubit, that may be 1, 0 or both at once. A diamond transmits qubits by encoding them in light particles, or photons, that travel through fiber-optic cables. Qubit-storing diamond defects are typically made with nitrogen atoms, which can store quantum data for milliseconds - a relatively long time in the quantum realm (SN: 4/23/11, p. 14). But nitrogen defects can’t communicate that data clearly. They emit light particles at a broad range of frequencies, which muddles the quantum information written into the photons. Defects made with silicon atoms emit light more precisely, but until now haven’t been able to store qubits for longer than several nanoseconds due to their electrical interactions with nearby particles, explains Nathalie de Leon, an electrical engineer at Princeton University. De Leon and colleagues got around this problem by forging silicon defects in a diamond infused with boron. This extra chemical ingredient shielded the delicate silicon defects from electrical interactions with nearby particles, extending the defects’ quantum memory. The boron-infused crystal nearly rivaled the long-term quantum memory of nitrogen defects, storing qubits for about a millisecond. And it gave a clean photon readout, emitting about 90 percent of its photons at the exact same frequency-compared to just 3 percent of photons spat out by nitrogen defects. Tweaking the environment of the silicon defects was "an extremely creative way" to help keep a better grip on qubits, says Evelyn Hu, an applied physicist and electrical engineer at Harvard University not involved in the work. This new artificial diamond could be used to construct devices called quantum repeaters for long-distance quantum communications, says David Awschalom, a physicist and quantum engineer at the University of Chicago who wasn’t involved in the work. Qubit-carrying photons can travel only up to about 100 kilometers through optical fiber before their signal gets scrambled (SN: 9/30/17, p. 8). Quantum repeaters that catch, store and re-emit photons could serve as stepping stones between fiber-optic cables to extend the reach of future networks.
DS201809-2008
2018
Chapman, J., Dejanin, B.An overview of synthetic diamond detection - methods and instruments.The Australian Gemmologist, Vol. 26, 9-10, pp. 209-216.Globalsynthetics
DM201809-2152
2018
DDIGLOBALHow the recent FTC decision on synthetic diamonds might impact artisanally mined diamonds. ddiglobal.org, Aug. 16, 1p.GlobalNews item - synthetics
DM201809-2165
2018
Diamonds.netMelee parcel contains just one natural stone. GIA ( in 1,093 diamonds.net, Aug. 16, 1/4p.GlobalNews item - synthetics
DM201809-2177
2018
Even-Zohar, C., Navakar, P.Fire in the hole.De Beers and LightboxIdexmagazine.com, pp. 26-39.GlobalNews item - Lightbox
DM201809-2178
2018
Even-Zohar, C., Navakar, P.History and commentary on Lightbox and future.Solitaire International.com, Aug. 11p. PdfGlobalNews item - Lightbox
DM201809-2183
2018
ForbesThe jewelery industry grapples with the real impact of lab-grown diamonds.forbes.com, Aug. 14, 1p.GlobalNews item - synthetics
DS201809-2025
2018
Gems & GemologyChart: Features of synthetic diamond chart in colour.Gems & Gemology, Vol. 54, 2, p. 150.Globalsynthetics
DM201809-2190
2018
JCKZharkov started a lab-grown venture, called Ultra C, that will be based in Switzerland, with subsidiaries in United States, Russia and Singapore. 'new age diamonds'jckonline.com, Aug. 21, 1p.RussiaNews item - synthetics
DM201809-2250
2018
Rough-polishedLab created diamond jewelery market to grow to $ 15B by 2035. Zimniskyrough-polished, Aug. 28, 1/2p.GlobalNews item - synthetics
DS201809-2118
2018
Zaitsev, A.M., Moe, K., Wang, W.Defect transformations in nitrogen doped CVD diamond during irradiation and annealing.Diamond and Related Materials, doi:101016/j.diamond.2018.07.017Russiasynthetics

Abstract: Nitrogen-doped CVD diamond treated with electron irradiation and subsequent annealing at temperatures from 860 to 1900?°C was studied using fluorescence imaging, optical absorption and photoluminescence. It was found that nitrogen impurity produces many optical centers active throughout the infrared and visible spectral ranges. The most prominent of them active in IR spectral range are the centers related to nitrogen-hydrogen complexes. They produce absorption lines at 2827, 2874, 2906, 2949, 2990, 3031, 3107, 3123 and 3310?cm?1. Two characteristic absorptions at wavenumbers 1293?cm?1 and 1341?cm?1 were tentatively ascribed to a modified form of nitrogen A-aggregates. In the visible and near IR spectral ranges, characteristic nitrogen-related centers have zero-phonon lines (ZPLs) at 457, 462, 489, 498, 722.5, 852.5, 865.5, 868.5, 908, 921.5 and 924.5?nm. Some of them, e.g. 457, 462 and 498?nm centers, are unique of CVD diamond. It has been confirmed that the brightest pink color of electron-irradiated nitrogen-doped CVD diamond is produced by annealing at temperatures about 1000?°C. Annealing at temperatures over 1600?°C destroys the irradiation-induced pink color. It was found that the center 489?nm is a major absorption feature in the visible spectral range of electron-irradiated, nitrogen-doped CVD diamond. Green color of electron-irradiated, nitrogen-doped CVD diamond is caused by combined absorption of GR1 center and 489?nm center. It has been confirmed that NV defects produced in CVD diamond during growth are very temperature stable. They survive heating at temperatures at least 2000?°C. In contrast, NV defects produced by irradiation may anneal out at temperatures as low as 1600?°C. This much lower thermal stability of the radiation-induced NV defects is the result of their interaction with other radiation defects produced in their vicinity. A conclusion has been made that in nitrogen-doped CVD diamonds nitrogen atoms may form clusters. These clusters are probably the origin of the broad band luminescence at wavelengths 360, 390, 535 and 720?nm and a strong broadening of ZPLs of many optical centers.
DM201810-2438
2018
ForbesDiamonds face a laboratory-grown future but De Beers will retain control.forbes.com, Sept. 28, 2p.GlobalNews item - synthetics
DS201810-2320
2018
Gem NotesReduced phosphorescence of type II HPHT grown synthetic diamonds after electron beam irradiation.The Journal of Gemmology, Vol. 36, 3, pp. 208-210.Globalsynthetics
DM201810-2470
2018
National PostLab-made diamonds for less: why De Beers's plan worries rivals.nationalpost.com, Sept. 5, 1p.GlobalNews item - synthetics
DM201810-2515
2018
Wall Street JournalDiamond mines are drying up. Are lab-grown gems the answer? Paul Zimniskywallstreetjournal.com, Sept. 26, 1p.GlobalNews item - synthetics
DM201810-2517
2018
Zimnisky, P.Lab-created diamond jewelry market forecasted to grow to $ 15B by 2035.paul@paul zimnisky.com, Aug. 28, 5p.GlobalNews item - synthetics
DM201811-2647
2018
Creamers Mining WeeklyDe Beers eyes tech markets for synthetic diamonds future. ( quantum computing.. Element Six expansion)creamersminingweekly.com, Oct. 19, 1/4p.GlobalNews item - synthetics
DM201811-2668
2018
GQ MagazineLab-grown diamonds: they're real, and they're spectacular.gq.com, Oct. 16, 2p.GlobalNews item - synthetics
DM201811-2673
2018
IGIThe FICCI organized a Workshop " Know your Jewellery"…. Discusses red diamondsIGI.com, Oct. 16, 2p.IndiaNews item - IGI
DM201811-2676
2018
JCK Daily NewsDe Beers Lightbox brand: early reviews and future plans. jckonline.com, Oct. 5, 4p.Global, United States, OregonNews item - Lightbox
DM201811-2689
2018
ReutersDiamond trade must reform in face of threat from synthetic stones: U.S.reuters.com, Oct. 2, 1/2p.United StatesNews item - synthetics
DM201811-2697
2018
Rough-polishedU.S. says diamond trade should reform to fend off synthetic threat.rough-polished.com, Oct. 4, 1/4p.United StatesNews item - synthetics
DM201811-2709
2018
Rough-polishedZharkov: High technology make it possible to create a product that can be obtained in natural stones only for very big money.rough-polished.com, Oct. 10, 1p.GlobalNews item - synthetics
DM201812-2952
2018
Diamonds.netMajor US retailers embrace synthetic diamonds.diamonds.net, Nov. 3, 1/4p.United StatesNews item - synthetics
DM201812-2977
2018
Hiyate, A.De Beers launches Lightbox.Diamonds In Canada, Nov. pp. 9-11.GlobalNews item - Lightbox
DS201812-2829
2018
Kazuchits, N.M., Rusetsky, M.S., Kazuchits, V.N., Korolovic, O.V., Kumar, V., Moe, K.S., Wang, W., Zaitsev, A.M. Comparison of HPHT and LPHT annealing of Ib synthetic diamond.Diamond & Related Materials, doi.1016/j.diamond.2018.11.018 30p. Russiasynthetics

Abstract: Defect transformations in type Ib synthetic diamond annealed at a temperature of 1870?°C under stabilizing pressure (HPHT annealing) and in hydrogen atmosphere at normal pressure (LPHT annealing) are compared. Spectroscopic data obtained on the samples before and after annealing prove that the processes of nitrogen aggregation and formation of nitrogen?nickel complexes are similar in both cases. Essential differences between HPHT and LPHT annealing are stronger graphitization at macroscopic imperfections and enhanced lattice distortions around point defects in the latter case. The lattice distortion around point defects is revealed as a considerable broadening of zero-phonon lines of “soft” (vacancy-related) optical centers. It was found that LPHT annealing may enhance overall intensity of luminescence of HPHT-grown synthetic diamonds.
DM201812-3001
2018
London Mining JournalSynthetic diamonds' price differential continues to rise. Comment by Zimnisky ( no resale value)londonmining journal.com, Nov. 27, 1/4p.GlobalNews item - synthetics
DM201812-3041
2018
Rough-polishedIf real gems are repaced by artificial stones, it is not the difference in value that sellers may cheat you out, but the very idea that you are able to obtain along with a jewelery piece made from a genuine stone. Elena Titova ( Russian Decorative Art Murough-diamond.com, Nov. 13, 1p.RussiaNews item - synthetics
DM201812-3045
2018
Rough-polishedDiamond Foundry creates one of a kind ring completely made of diamond worth $ 250,000.rough-diamond.com, Nov. 16, 1/4p.GlobalNews item - Diamond Foundry
DM201812-3070
2018
The Israeli Diamond IndustryLab-grown diamonds could recharge drones in mid-flight.en.israelidiamond .co.il, Nov. 21, 1/2p.GlobalNews item - synthetics
DS201812-2891
2018
The Israeli Diamond IndustryLab-grown diamonds could recharge drones in mid flight. LakeDiamond company.en.israelidiamond.co.il, Nov. 21, 1/2p.Europe, Switzerlandsynthetics

Abstract: LakeDiamond, a Swiss-based company that grows ultra pure diamonds and transforms them for high-tech applications, is currently developing a system that could revolutionize the use of civilian drones. According to a story in phys.org, the Swiss company is testing the use of small lab-grown diamond in recharging drones mid-flight through a laser beam. The laser beam, guided by a tracking system, can recharge photovoltaic cells on the drones’ surface. Recently, LakeDiamond’s project was included among ten projects supported for two years by the Swiss Space Office. Currently, batteries of drones - especially propeller drones - can keep the drones in flight for up to 15 minutes at a time. Using a high-power laser that cannot damage human skin or eyes, LakeDiamond’s technology is built around lab-grown diamonds used as as the optical component on a booster, which is also composed of reflective material and a small metal plate to absorb the heat. According to the pice, “the diamonds are able to transfer heat to a small metal plate that dissipates it, while at the same time reflecting light in such a way as to create a laser beam”. The new diamond-based system could have other potential applications, such as charging and transmitting data to satellites. Although the future for LakeDiamond’s project looks bright, its remote recharging system works in the lab “but will require further development and refinement before it’s ready for field use”. The company also has to work out how to recharge large drones, and how to deal with some expected problems - such as the drone flying behind an obstacle and being cut off from its laser energy source.
DM201812-3080
2018
Zimnisky, P.2018: The year of the lab-created diamond.paulzimnisky.com, Nov. 26, 4p.GlobalNews item - synthetics
DM201901-0109
2018
Creamers Mining WeeklySynthetic diamonds hogged media attention in 2018.creamersmining weekly.com, Dec. 14, 1/4p.GlobalNews item - synthetics
DS201901-0025
2018
Deljanin, B., Chapman, J.Steps in screening and ID of laboratory-grown diamonds with synthetic diamond ID kit.Gems & Gemology, Sixth International Gemological Symposium Vol. 54, 3, 1p. Abstract p. 305-6.Globalsynthetics

Abstract: Laboratory-grown diamonds are created using either high-pressure, high-temperature (HPHT) or chemical vapor deposition (CVD). With the influx of manmade diamonds on the market over the past few years, instrument producers and labs have launched screening and detection instruments to help dealers and jewelers spot HPHTor CVD-grown specimens. Most standard instruments are inaccurate testers or just type I and type II screening devices that do not give a definite answer about diamond genesis. Over the last four annual Mediterranean Gemmological and Jewellery Conferences and more than 30 workshops given in 17 countries, we have assembled a portable new Synthetic Diamond Identification Kit. The kit comprises two portable instruments and two booklets: 1) A PL inspector (mini UV lamp with magnifier) to inspect laboratory-grown, treated, and natural diamonds using long- and short-wave fluorescence and phosphorescence 2) A 2017 handbook with images and explanation of longand short-wave reactions of diamonds of all types 3) A mini foldable polariscope with portable light to separate natural diamonds using characteristic birefringence patterns from HPHT and CVD diamonds 4) A 2010 handbook with images and explanations of crosspolarized filter reactions of diamonds of all types The combination of this kit with professional training could identify all HPHT-grown diamonds and most CVD-grown diamonds on the market, loose or mounted. Also available are melee and jewelry inspectors consisting of larger UV lamps with magnifiers designed for identification of small loose or mounted diamonds. Different diamond types and subtypes can exhibit different birefringence under cross-polarized filters. A clear majority of natural diamonds exhibit some degree of internal strain, with type II natural diamonds showing a weak “tatami” pattern. HPHTgrown diamonds are free of such strain, and CVD-grown diamonds show mostly coarse columnar patterns. Most natural diamonds have a strong reaction to long-wave UV; this reaction is usually weaker (mostly blue) at shorter wavelengths. Laboratory-grown diamonds generally exhibit more intense fluorescence with short-wave UV compared to long-wave UV, with a chalky coloring tinged with green or yellow. Most HPHT-grown diamonds also phosphoresce. If a diamond is free of inclusions, fluorescence is a reliable screening test to flag suspicious stones that should be further checked under cross-polarized filters (figure 1). In the case of some rare near-colorless clean CVD-grown diamonds that do not show fluorescence or have a birefringence pattern that is coarse but resembling tatami in type IIa and weak patterns in natural Ia diamonds, additional tests using advanced spectroscopy and strong short-wave UV light to observe growth patterns are needed to confirm diamond genesis.
DM201901-0114
2018
Diamonds.netLightbox to launch rings and bracelets.diamonds.net, Dec. 4, 1/4p.GlobalNews item - Lightbox
DM201901-0116
2018
Diamonds.netLab grown production rising 15% per year 17 mln carats annuallydiamonds.net, Dec. 6, 1/4p.GlobalNews item - synthetics
DM201901-0119
2018
Diamonds.netDiamonds and lies expose the real fake. Insight reportdiamonds.net, Dec. 6, 2p.GlobalNews item - synthetics
DM201901-0123
2018
Diamonds.netDe Beers Lightbox chief reveals 2019 plans.diamonds.net, Dec. 27, 1/4p.GlobalNews item - Lightbox
DS201901-0027
2018
Diggle, P.L., D'Haenens-Johannsson, U.F.S., Wang, W., Newton, M.E.Diamond and diffraction limit: optical characterization of synthetic diamond.Gems & Gemology, Sixth International Gemological Symposium Vol. 54, 3, 1p. Abstract p. 265.GlobalDiamondView

Abstract: Diamond, known for its splendor in exquisite jewelry, has been synthesized since the 1950s. In the last six decades, the perfection of laboratory-grown single-crystal diamond has vastly improved through the research and development of two main synthesis techniques. One replicates Earth’s natural process, where the diamond is grown in the laboratory under conditions of diamond stability at high temperature and high pressure (HPHT). The other technique relies on the dissociation of methane (or other carbon-containing source gas) and hydrogen and the subsequent deposition of diamond at low pressures from the gaseous phase in a process known as chemical vapor deposition (CVD). In the latter case, diamond is not the stable form of carbon, but the kinetics in the CVD process are such that diamond wins out. Large gem-quality synthetic diamonds are now possible, and a 6 ct CVD (2018) and a 15.32 ct HPHT (2018) have been reported. It is of course possible to differentiate laboratory-grown from natural diamond based on how extended and point defects are incorporated into the crystal. Furthermore, treated diamond can be identified utilizing knowledge of how defects are produced and how they migrate and aggregate in both natural and synthetic diamond samples. Room-temperature confocal photoluminescence microscopy can be used to image the emission of light from defects in diamond with a spatial resolution limited only by the diffraction limit; a lateral spatial resolution approaching 300 nm is routinely achieved (figure 1). It is possible with this tool to identify point defects with concentrations less than 1 part per trillion (1011 cm–3). This talk will outline the experimental setup, how this tool has been used to identify the decoration of dislocations with point defects in CVD lab-grown diamond, and how different mechanisms for defect incorporation operate at growth sector boundaries in HPHT synthetic diamond.
DS201901-0030
2018
Eaton-Magana, S.Summary of CVD lab-grown diamonds seen at the GIA laboratory.Gems & Gemology, Sixth International Gemological Symposium Vol. 54, 3, 1p. Abstract p. 269-270..United Statessynthetics

Abstract: While chemical vapor deposition (CVD) diamond growth technology has progressed significantly in recent years, with improvements in crystal size and quality, the use of these goods in the jewelry trade is still limited. Not all CVD-grown gem diamonds are submitted to GIA for grading reports, and they only account for about 0.01% of GIA’s annual diamond intake (both D–Z equivalents and fancy color; Eaton-Magaña and Shigley, 2016). The CVD process involves diamond growth at moderate temperatures (700–1300°C) but very low pressures of less than 1 atmosphere in a vacuum chamber (e.g., Angus and Hayman, 1988; Nad et al., 2015). This presentation summarizes the quality factors and other characteristics of the CVD-grown material submitted to GIA (e.g., figure 1) and discusses new research and products. Today the CVD process is used to produce high-color (as well as fancy-color) and high-clarity type II diamonds up to several carats in size. The majority of the CVD material seen at GIA consists of near-colorless (G–N equivalent) with colorless (D–F equivalent) and various “pink” hues. Additionally, CVD material is constantly setting new size milestones, with the announcement of an approximately 6 ct round brilliant earlier this year (Davis, 2018). However, the attainable sizes among CVD products are dwarfed by those from the HPHT process, with 15.32 ct as the current record for a faceted gem (Ardon and Eaton-Magaña, 2018). One particular challenge for gemologists (albeit very rarely encountered) comes from the lab-grown/natural hybrids (figure 2) that have been submitted to and documented by gemological laboratories (e.g., Moe et al., 2017; Tang et al., 2018). In these specimens, the grower places a natural diamond into the CVD reactor as the seed plate, with both components retained in the faceted gem. If the manufacturer is using a colorless natural type Ia diamond as a seed plate for near-colorless CVD growth, the hybrid cannot undergo any post-growth HPHT treatment, as this would radically alter the natural seed by turning the natural diamond yellow. If the manufacturer is creating a CVD overgrowth layer on a faceted natural diamond, the intent is to either add weight to a diamond that may be near a weight boundary or to achieve a color change, typically to blue. These hybrid products also make it more difficult to infer a diamond’s history based solely on its diamond type. The CVD process has also created some unique gems that have not been duplicated among natural, treated, or HPHT-grown diamonds. These include CVD-grown diamonds with a high concentration of silicon impurities, which create a pink to blue color shift. In those samples, a temporary effect was activated by UV exposure, which precipitated a charge transfer between negative and neutral silicon-vacancy centers (D’Haenens-Johansson et al., 2015). Also recently seen are type IIb CVD goods. Some that were submitted by clients had a low boron concentration (3 ppb, with G-equivalent color and 1.05 carat weight). Meanwhile, some research samples produced by a manufacturer in China and fashioned as flat plates had dark bluish coloration and very high boron concentration (2500 ppb and higher). Also among that suite of flat-plate CVD samples was one with a black color caused by extremely high amounts of nitrogen-vacancy centers. Although new CVD products are continually being manufactured and introduced to the trade, the laboratory-grown diamonds examined to date by GIA can be readily identified.
DS201901-0033
2018
Fisher, D.Addressing the challenges of detecting synthetic diamonds.Gems & Gemology, Sixth International Gemological Symposium Vol. 54, 3, Fall 1p. Abstract p. 263-4Globalsynthetics

Abstract: The dream of growing synthetic diamonds existed for many centuries before it was achieved in the 1950s. The development of techniques to identify synthetic diamonds and enable their reliable separation from natural diamonds has not had the luxury of centuries to work with. Since the early reports on the characteristics of laboratory-grown stones, scientists have been working steadily to establish and improve the means of detection. For many years the De Beers Group has been developing equipment for rapidly screening and testing for potential synthetic and treated diamonds as part of a strategy aimed at maintaining consumer confidence in natural untreated diamonds. This work has been underpinned by extensive research into defects in natural and synthetic diamond, either conducted within De Beers’ own facilities or through financial and practical support of research in external institutions. Key to any detection technique for synthetic diamonds is a fundamental understanding of the differences between them and natural diamonds. This could take the form of differences in the atomic impurity centers or differences in the spatial distributions of these centers brought about by very significant distinctions in the growth environments. The former was used in the development of the Dia - mondSure instrument that, among other things, detects variance differences in the absorption spectra due to the presence or absence of the N3 feature. This absorption is from a nitrogen-related defect that is usually only produced in nitrogen-containing diamonds by extended periods at relatively high temperatures—that is, conditions generally experienced by natural diamonds. Growth-related differences in impurity distributions can be very accurately imaged using the DiamondView instrument. Short-wave ultraviolet (UV) light is used to excite luminescence from a very thin layer of diamond near the surface to give images free from the blurring encountered with more common longer-wavelength excitation sources. DiamondView has, since its launch, provided the benchmark for the detection of synthetic diamonds. A number of approaches involving absorption features have been developed, including the use of almost complete absorption in the ultraviolet region of the spectrum to indicate that a diamond is not synthetic. The UV absorption is produced by the A center (two adjacent nitrogen atoms) and is rarely encountered in as- grown synthetic diamonds. The main form of nitrogen in synthetic diamonds is a single substitutional nitrogen atom that absorbs in both the ultraviolet and visible regions to produce yellow color. The combination of UV absorption and no strong yellow color is therefore restricted to natural diamond. However, treatment of nitrogen-containing synthetic diamonds is capable of generating A centers, but generally does not produce a colorless stone. This effect accounts for the careful color ranges often applied to instruments relying on UV absorption for screening. This also highlights one of the limitations of absorption spectroscopy: When smaller stones are tested, the amount of absorption decreases and the technique becomes less reliable. In recent years we have seen a shift to smaller sizes (below 0.01 ct) in the synthetic diamonds being offered for sale to the jewelry market, and screening techniques have had to evolve to address this situation and the limitations of absorption-based approaches. Testing melee-sized diamonds, as well as introducing technical challenges around the measurement technique, has also led to the introduction of greater automation. In 2014 the De Beers Group introduced the first automated melee screening instrument (AMS1), which combined the measurement technique from Dia - mondSure with automated feeding and dispensing of stones in the range of 0.20 to 0.01 ct. While this instrument was well received and effectively addressed concerns around synthetic melee-sized stones in the trade at the time, there soon came calls for improvements— a faster instrument capable of measuring smaller stones, no restrictions on cut, and a lower referral rate for natural diamonds. These requirements proved impossible to meet with the limitations imposed by absorption measurements, and a new technique based on time-resolved spectroscopy was developed. This resulted in the AMS2 instrument, launched in March 2017. The AMS2 processes stones at a speed of one stone per second, 10 times faster than the AMS1. It measures round brilliants down to 0.003 ct (0.9 mm dia - meter) and can be used on other cuts for stones of 0.01 ct and above. The measurement technique itself has been incorporated into the SYNTHdetect (figure 1, left), an instrument launched in September 2017 that allows manual observation of the time-resolved emission. Besides providing the same testing capability as AMS2 (figure 1, right) for loose stones, various holders allow testing of mounted stones in a wide range of configurations. The benefit of this approach is that stones tested loose using AMS2 will generate a broadly consistent result when mounted on SYNTHdetect. Changes in growth processes for synthetic diamonds have also led to the gradual introduction of new characteristics. High - pressure, high-temperature (HPHT) synthetics have tended to be fairly consistent in their growth-related luminescence patterns, while significant variations in the features associated with chemical vapor deposition (CVD) synthetics have been observed. These continue to be well documented and have led to the gradual evolution of the DiamondView instrument and the way in which it is used. Post-growth treatment of synthetic diamonds can be applied for a number of reasons: improvement in the color, modification of the atomic defects to make the stones look more like a natural diamond, and removal of a characteristic that could be used to identify a synthetic diamond. The motivation for the latter two treatments can only be described as fraudulent. The challenge in developing detection instruments and techniques is to ensure that they are as robust as possible in the face of such challenges. Treatment techniques will rarely have any effect on the growth patterns associated with synthetic diamonds, and it is therefore very difficult to treat synthetics in a way that would make them undetectable using the DiamondView. Screening instruments tend to be based on a single technique, and it is important that the approach adopted not be vulnerable to simpler forms of treatment. This has been of primary concern to the De Beers Group in the development of our own screening instruments. It has also been necessary in certain cases to withhold detailed information about detection techniques where disclosure of this would lead to undermining of the detection technique itself. The De Beers Group continues to invest heavily in growth and treatment research in order to develop the next generation of instruments and techniques that will assist the trade in maintaining detection capability to support consumer confidence. The Group is uniquely placed in the industry to address these challenges due to its collaboration with Element Six (world leaders in synthesis of diamond for industrial and technical applications) and its indepth knowledge of the properties of natural diamonds with known provenance from its own mines.
DS201901-0043
2018
Ke, J., Lu, T., Lan, Y., Song, Z., Tang, S., Zhang, J., Chen, H.Recent developments in detection and gemology in China, particularly for Chinese synthetic diamonds.Gems & Gemology, Sixth International Gemological Symposium Vol. 54, 3, 1p. Abstract p. 268.Chinasynthetics

Abstract: China is the world’s largest producer of HPHT-grown industrial diamonds. Its 2016 production of about 20 billion carats accounted for 98% of the global supply. Since the beginning of 2015, meleesized colorless HPHT synthetic diamonds have been tested at the National Gemstone Testing Center’s (NGTC) Shenzhen and Beijing laboratories in parcels submitted by different clients, which means that colorless HPHT synthetic diamonds have entered the Chinese jewelry market and may be mistaken for natural diamonds. CVD synthesis technology has grown rapidly in recent years. Large colorless and colored (blue, pink) CVD-grown diamonds have been entering the market, and a few have been fraudulently sold as natural diamonds. China has independently developed gem-grade HPHT synthetic diamond production technology since 2002, and can grow gem-grade type Ib, IIa, and IIb and high-nitrogen-content synthetic diamonds in volume, depending on market needs. Gemgrade type Ib, IIa, and IIb HPHT synthetic diamonds have been grown using the temperature gradient method, under a cubic press at high pressure (e.g., 5.4 GPa) and high temperature (1300-1600°C). Driven by a specific temperature gradient, the carbon source from high-purity graphite (>99.9%) located at the high-temperature zone can diffuse into the seed crystals in the cubic press, resulting in the crystallization of synthetic diamonds. Chinese production of melee-sized colorless to near-colorless HPHT synthetic diamonds accounts for about 90% of the global output. Gem-grade type IIa and IIb CVD synthetic diamonds are grown using the microwave plasma chemical vapor deposition (MPCVD) and direct current (DC) arc plasma methods. Faceted colorless CVD diamonds can be grown in sizes up to 6 ct by at least two Chinese companies (table 1). After testing and analyzing thousands of natural and synthetic diamonds collected directly from the Chinese companies, NGTC independently developed the GV5000, PL5000, DS5000, and ADD6000 instruments for rapidly screening and identifying the diamonds based on the gemological characteristics obtained. Besides HPHT and CVD synthetic diamonds, a thickly layered hybrid diamond consisting of both natural and CVD material was identified at the NGTC Beijing laboratory (figure 1). The identification features and properties of regrown CVD synthetic diamonds using natural type Ia diamond crystals as seeds will be reported. The current status and features of colored stones examined at NGTC laboratories, including several cases studies, will be discussed.
DS201901-0044
2018
Kitawaki, H., Emori, K., Hisanaga, M., Yamamoto, M., Okano, M.LPHT treated pink CVD synthetic diamond.Gems & Gemology, Sixth International Gemological Symposium Vol. 54, 3, 1p. Abstract p. 267.Globalsynthetics

Abstract: Pink diamond is extremely popular among fancy-color diamonds, which has prompted numerous attempts to produce pink diamond artificially. Pink CVD synthetic diamonds appeared on the gem market around 2010. Their color was produced by a multistep process combining post-growth HPHT treatment to remove the brown hue and subsequent electron irradiation, followed by low-temperature annealing. Pink CVD synthetic diamonds treated only with low pressure and high temperature (LPHT), without additional post-growth irradiation, have also been reported but are rarely seen on the market. Recently, a loose pink stone (figure 1) was submitted to the Central Gem Laboratory in Tokyo for grading purposes. Our examination revealed that this 0.192 ct brilliant-cut marquise was a CVD synthetic diamond that had been LPHT treated. Visually, this diamond could not be distinguished from natural diamonds with similar color. However, three characteristics of CVD origin were detected: 1. C-H related absorption peaks between 3200 and 2800 cm-1, located with infrared spectroscopy 2. A luminescence peak at 737 nm, detected with photoluminescence (PL) spectroscopy 3. A trace of lamellar pattern seen in the DiamondView However, irradiation-related peaks such as at 1450 cm-1 (H1a), 741.1 nm (GR1), 594.3 nm, or 393.5 nm (ND1) that are seen in the pink CVD diamonds treated with common multi-step processes were not detected. The presence of four peaks at 3123, 2901, 2870, and 2812 cm-1 between 3200 and 2800 cm-1 suggests this stone was LPHT treated; the following observations indicate that it was not HPHT treated: 1) The 3123 cm-1 peak presumably derived from NVH0 disappears after a normal HPHT treatment. 2) The 2901, 2870, and 2812 cm-1 peaks are known to shift toward higher wavenumbers as the annealing temperature rises. Our own HPHT treatment experiments on CVDgrown diamonds proved that the 2902 and 2871 cm-1 peaks detected after 1600°C annealing shifted to 2907 and 2873 cm-1 after 2300°C annealing. The peak shift of 2901, 2870, and 2812 cm-1 is also related to the pressure during the annealing, as these peaks shifted to 2902, 2871, and 2819 cm-1 at the higher pressure of 7 GPa compared to 2900, 2868, and 2813 cm-1 at the ambient pressure under the same annealing temperature of 1600°C. 3) Absorption peaks at 7917 and 7804 cm-1 in the infrared region and at 667 and 684 nm in the visible range were also detected, which coincide with the features seen in LPHTtreated stones. From the combination of the intensity ratios of optical centers such as H3 and NV centers that were detected with PL measurement, this sample is presumed to have been treated with LPHT annealing at about 1500- 1700°C as a post-growth process. In recent years, CVD synthetic diamonds have been produced in a wider range of colors due to progress in the crystal growth techniques and post-growth treatments. Although HPHT treatment has been employed mainly to improve the color in a diamond, LPHT annealing may become widespread as the technique is further developed. Gemologists need to have deep knowledge about the optical defects in such LPHT-treated specimens.
DM201901-0139
2018
London Mining JournalMarch survey of prices found the discount of lab created, gem quality diamonds relative to natural diamonds had nearly doubled in 12 months. Zimnisky quoted.londonmining journal.com, Dec. 17, 1/4p.GlobalNews item - synthetics
DS201901-0052
2018
Palyanov, Y.N.The many facets of diamond crystals.Crystals MDPI, Vol. 8, 2, 9p. Doi.org/10. 3390/cryst8020072Russiasynthetics

Abstract: This special issue is intended to serve as a multidisciplinary forum covering broad aspects of the science, technology, and application of synthetic and natural diamonds. This special issue contains 12 papers, which highlight recent investigations and developments in diamond research related to the diverse problems of natural diamond genesis, diamond synthesis and growth using CVD and HPHT techniques, and the use of diamond in both traditional applications, such as mechanical machining of materials, and the new recently emerged areas, such as quantum technologies. The results presented in the contributions collected in this special issue clearly demonstrate that diamond occupies a very special place in modern science and technology. After decades of research, this structurally very simple material still poses many intriguing scientific questions and technological challenges. It seems undoubted that diamond will remain the center of attraction for many researchers for many years to come.
DM201901-0165
2018
ReutersLab grown diamonds slide as De Beers fights back.reuters.com, Dec. 20, 1/4p.GlobalNews item - synthetics
DM201901-0189
2018
Rough-polishedConsumer interest in lab-grown diamonds grows - report.Rough-polished, Dec. 12, 1/4p.GlobalNews item - synthetics
DM201901-0206
2018
Rough-polishedOne hundred carat barrier in growing single crystal diamonds is history.Rough-polished, Dec. 27, 1p.GlobalNews item - synthetics
DS201901-0094
2018
Zaitsev, A.M., Moe, K.S., Wang, W.Nitrogen in CVD-grown diamond.Gems & Gemology, Sixth International Gemological Symposium Vol. 54, 3, 1p. Abstract p. 304-5.Globalsynthetics

Abstract: In diamond grown by the CVD method, nitrogen behaves differently than it does in natural and HPHT-grown diamond. The most striking peculiarities are low efficiency of doping, formation of unique optical centers over a wide spectral range from the ultraviolet (UV) to the IR regions, and formation of unusual defects related to aggregated nitrogen. In order to gain a better insight into this problem, several nitrogen-doped specimens grown in GIA’s CVD diamond lab and a few commercial yellow CVD-grown diamonds have been studied in their as-grown (asreceived) state and after electron irradiation and annealing at temperatures up to 1900°C (low-pressure, high-temperature treatment). We found that the brightest pink color of electron-irradiated nitrogen-doped CVD-grown diamond is produced by the NV– center after annealing at temperatures of about 1000°C. Annealing at temperatures over 1600°C destroys the irradiation-induced pink color (figure 1). The most prominent optical centers in the IR spectral region (figure 2, left) produced absorptions at 2828, 2874, 2906, 2949, 3031, 3107, 3123, and 3310 cm–1 (latter two not shown). These are ascribed to nitrogen-hydrogen complexes. Two characteristic absorption features at 1293 and 1341 cm–1 (figure 2, right) are unique to CVD diamond. They are tentatively ascribed to a modified form of nitrogen A-aggregates. In the visible and NIR spectral ranges, characteristic nitrogenrelated centers have zero-phonon lines (ZPLs) at 457, 462, 489, 498, 647, 722.5, 852.5, 865.5, 868.5, 908, 921.5, and 924.5 nm. The 489 nm feature is a major color center of electron-irradiated, nitrogen-doped CVD-grown diamond. This center, together with the GR1 center, is responsible for the green color in this material. An assumption is made that N atoms may form clusters in highly nitrogen-doped CVD-grown diamonds. These clusters may result in broad-band luminescence at wavelengths of 360, 390, 535, and 720 nm and a strong broadening of the ZPLs of many optical centers
DM201902-0341
2019
Bates, R.4 new questions for the lab-grown market - treatment disclosure, Patriot Act ( AML), location/made/sourcing.jck.com, Jan. 25, 3p.GlobalNews item - synthetics
DM201902-0368
2019
Diamonds.netFlemish Gov't backs industrial-synthetics factory. Heyaru Engineering.diamonds.net, Jan. 13, 1/4p.Europe, BelgiumNews item - synthetics
DM201902-0373
2019
Diamonds.netLab grown diamonds will survive BIG Diamonds attempt to kill them, start up says.diamonds.net, Jan. 14, 1p.GlobalNews item - synthetics
DM201902-0375
2019
Diamonds.netSynthetics threat will grow, says ABN Amro.diamonds.net, Jan. 17, 1/4p.GlobalNews item - synthetics
DM201902-0382
2019
Financial TimesFormer Dominion chief launches synthetic diamond venture … Evans ….financialtimes.com, Jan. 13, 1/2p.United StatesNews item - synthetics
DM201902-0387
2019
Idex OnlineThe assets of the lab grown diamond maker Scio Diamond are being bought by a Nevada company called Adamas One Corp.idexonline.com, Jan 4, 1/2p.United States, NevadaNews item - Scio
DM201902-0408
2019
RapaportDiamond Foundry is increasing its production more than tenfold and raising wholesale prices 15%, as it predicts an uptick in demand for lab-grown diamonds.rapaport.com, Jan. 9, 1/4p.GlobalNews item - synthetics
DM201902-0411
2018
Rough-polishedNew diamond technology produced 103.5 ct single crystal type Ibrough-polished.com, Dec. 30, 1/4p.GlobalNews item - synthetics
DM201902-0420
2019
Rough-polishedRussia doesn't want synthetics to be passed off as natural diamonds - Russia's Ministry of Financerough-polished.com, Jan. 11, 1/4p.RussiaNews item - synthetics
DM201902-0438
2019
Rough-polishedNorth Carolina State University managed to grow diamond fibers by exposing carbon fibers or nanotubes to the pulsed laser annealing (PLA) method. News.ncsu.edurough-polished.com, Jan. 25, 1/4p.United States, North CarolinaNews item - synthetics
DS201902-0325
2018
Su, L-X., Zhao, C-X., Lou, Q., Chun-Yao, F., Li, Z., Shen, C-L., Zang, J-H., Jia, X-P., Shan, C-X.Efficient phosphorescence from synthetic diamonds.Carbon, Vol. 130, 1, pp. 384-389.Globalsynthetics

Abstract: Synthetic diamonds have inspired much interest for their unique photophysical properties and versatile potential applications, but their phosphorescent phenomenon and mechanism have been paid much less attention. Here, phosphorescent diamonds with a lifetime of 5.4?s were synthesized by high-pressure and high-temperature method, and the diamonds exhibit an emission band at around 468?nm under the excitation wavelength of 230?nm. The quantum yield of the phosphorescent diamonds is about 4.7% at ambient temperature and atmosphere, which is the first report on the quantum yield of diamonds. The unique phosphorescence emission can be attributed to the radiative recombination from iron related donors and boron related acceptors.
DM201902-0455
2019
The Israeli Diamond CompanyABN Amro reports on industry. Lab-grown diamondsen.israelidiamond.co.il, Jan. 19, 1p.GlobalNews item - synthetics
DM201903-0554
2019
AllafricaThe mine of the future has arrived… The Finsch diamond adopted Sandvik designed automated haulage in 2005.moneyweb.co.za, Feb 6, 1/4p.Africa, South AfricaNews item - Sandvik
DM201903-0577
2019
Diamonds.netTwo white lab grown diamonds from De Beers' Lightbox have G colour and VS clarity ( GIA).diamonds.net, Feb. 7, 1/4p.GlobalNews item - Lightbox
DM201903-0580
2019
Diamonds.netGubelin testing nano-tracking for diamonds. Microscopic labelsdiamonds.net, Feb. 13, 1/4p.GlobalNews item - nanodiamond
DM201903-0581
2019
Diamonds.netHelzberg Diamonds launches its own Light Heart brand.diamonds.net, Feb. 13, 1/4p.United StatesNews item - synthetics
DM201903-0595
2019
JCKScio tried to strike deal with diamond companies…. Before selling assets to Adamas One.jck.com, Feb. 13, 1/4p.United States, South CarolinaNews item - Scio
DM201903-0597
2019
KnowledgeStill a girl's best friend: how ethical diamond are changing. Greater transparency.Knowledge@Wharton, Feb. 9, 1/4p.GlobalNews item - synthetics
DM201903-0607
2019
Mining.comNanosized diamond used to create super strong aluminum allow ( marine transport use)mining.com, Feb. 11, 1/2p.United Kingdom, RussiaNews item - nanodiamond
DM201903-0617
2019
Robinson, A.Lab grown diamonds.Idexmagazine, Vol. 30, 346, pp. 22-31.GlobalNews item - synthetics
DM201903-0638
2019
Rough-polishedDDT creates an entire lab-grown diamond ring. Dutch Diamond Technologiesrough-polished.com, Feb. 8, 1/4p.Europe, BelgiumNews item - DDT
DM201903-0642
2019
Rough-polishedMouawad creates the biggest fancy yellow diamond.rough-polished.com, Feb. 11, 1/4p.Europe, SwitzerlandNews item - synthetics
DM201903-0680
2019
Zimnisky, P.Made-in-China diamonds ready to rock global market.rt.com/business/ 450869-china- diamonds-global-market, Feb. 6, 1p.ChinaNews item - synthetics
DM201904-0814
2019
AsiaOneAre millennials abandoning diamonds? Jewellersasiaone.com, Mar. 12, 1/4p.GlobalNews item - synthetics
DM201904-0849
2019
Diamonds.netHRD makes key changes to lab-grown reports.diamonds.net, Mar. 7, 1/4p.Europe, BelgiumNews item - synthetics
DM201904-0866
2019
JCK NewsLightbox adds more 1 carat solitaires - but with drill holes.jckonline.com, Mar. 28, 1/4p.GlobalNews item - Lightbox
DM201904-0868
2019
jckonlineHow should lab-grown diamonds be graded?jckonline.com, Mar. 8, 4p.GlobalNews item - synthetics
DM201904-0874
2019
Mining.comFirm develops technique to detect rough and polished lab-grown yellow diamonds. Diamond Servicesmining.com, Mar. 26, 1p.GlobalNews item - Diamond Services
DM201904-0876
2019
MiningmxDe Beers makes early in-roads after Lightbox launch sees 60% retreat in synthetic pricing.miningmx.com, Mar. 7, 1/4p.GlobalNews item - Lightbox
DM201904-0913
2019
Rough-polishedHRD provides lab grown diamond grading reports.rough-polished, Mar. 11, 1/4p.GlobalNews item - synthetics
DM201904-0937
2019
Rough-polishedDemand for lab-grown diamonds rises while prices fall. GIArough-polished, Mar. 21, 1/4p.GlobalNews item - synthetics
DM201904-0942
2019
Rough-polishedSynthetic diamond coating is a new challenge for gemmologists.rough-polished, Mar. 22, 1/4p.GlobalNews item - synthetics
DM201904-0952
2019
Rough-polishedDiamond Services introduces new lab-grown diamond identification system.rough-polished, Mar. 27, 1/4p.GlobalNews item - synthetics
DM201905-1094
2019
Almor, Y.Are LGDs the cause of lower melee prices?idexonline.com, Apr. 5, 1/4p.GlobalNews item - synthetics
DM201905-1095
2019
Bates, R.Just how eco-friendly are lab-created diamonds?jckonline.com, Mar. 29, 1p.GlobalNews item - synthetics
DM201905-1096
2019
Bates, R.GIA has opted to change its reports for lab-grown diamonds by jettisoning the word synthetic. Scale to be used G-through Jjckonline.com, Apr. 1, 1p.GlobalNews item - synthetics
DM201905-1098
2019
Bates, R.FTC's warning letters ripple through lab grown industry.jckonline.com, Apr. 15, 3p.GlobalNews item - synthetics
DM201905-1146
2019
JCK FTC warns lab-grown diamond companies about marketing. jckonline.com, Apr. 2, 1/2p.GlobalNews item - synthetics
DM201905-1148
2019
JCK Diamond shavings: woes of the diamond industry.jckonline.com, Apr. 5, 1/4p.GlobalNews item - Lightbox
DM201905-1159
2019
RapaportGIA aligns lab-grown reports with FTC standards.gia.org, Apr. 1, 1/4pGlobalNews item - synthetics
DM201905-1168
2019
Rough-polishedAdvertisements for lab-grown diamonds must be crystal clear warns FTC.rough-polished.com, Apr. 3, 1/4p.GlobalNews item - synthetics
DM201905-1185
2019
Rough-polishedRussia's Ministry of Finance proposes to sell LGD jewellery in separate windows. rough-polished.com, Apr. 12, 1/4p.RussiaNews item - synthetics
DM201905-1220
2019
Rough-polishedThe technology of growing single-crystal diamonds has now become industrial in nature.rough-polished.com, Apr. 29, 1p.Global, IndiaNews item - synthetics
DM201906-1378
2019
Creamers Mining WeeklyMine versus lab: how green is your diamond?creamersmining weekly.com, May 2, 1/4p.GlobalNews item - synthetics
DM201906-1404
2019
Diamonds.netGIA spots natural-synthetic hybrid diamond. Layer over natural diamond.diamonds.net, May 21, 1/4p.GlobalNews item - synthetics
DM201906-1408
2019
Diamonds.netUndisclosed green synthetics raise GIA eyebrows.diamonds.net, May 26, 1/4p.United StatesNews item - synthetics
DM201906-1419
2019
International MiningElement Six synthetic diamond will help hard rock cutting achieve.international mining.com, May 13, 1/4p.GlobalNews item - Element Six
DS201906-1310
2019
Lab notesCVD layer grown on natural diamondGems & Gemology, Vol. 55, 1, pp. 97-99.Globalsynthetic

Abstract: A 0.64 ct Fancy grayish greenish blue cushion modified brilliant (figure 1) was recently found to be a composite of synthetically grown and natural diamond. During testing, the infrared spectrum showed both strong absorption of nitrogen and the absorption of uncompensated boron, features characteristic of type Ia and type IIb diamonds, respectively (figure 2). The UV-Vis-NIR spectrum showed “cape” peaks, which are nitrogen-related defects, but also a sloping absorption into the red portion of the spectrum caused by uncompensated boron. It is very unusual for boron- and nitrogen-related defects to be seen together in natural diamonds, though an example has been seen before (Spring 2009 Lab Notes, pp. 55-57). Mixed-type diamonds always call for additional scrutiny...(no abstract, full article)
DM201906-1422
2019
London Mining JournalSandvik unveils 3D printed diamond….. Dark colour for bondinglondonmining journal.com, May 23, 1/4p.GlobalNews item - Sandvik
DM201906-1427
2019
MiningmxStudy finds laboratory diamonds more carbon intensive than mined….reuters.com, May 3, 1p.GlobalNews item - synthetics
DM201906-1428
2019
MiningmxMan made or laboratory diamonds had a larger carbon footprint than naturally mined diamonds. Reuter study.miningmx.com, May 6, 1/4p.GlobalNews item - synthetics
DM201906-1437
2019
RapaportMartin Rapaport: Synthetic diamonds are a fundamental threat to the natural diamond industry…..Diamonds.net, May 23, 4p.GlobalNews item - synthetics
DM201906-1448
2019
Rough-polishedFirst ever rough LGD tender to be held on DMCC's DDE.rough-polished.com, May 8, 1/4p.United Arab Emirates, DubaiNews item - synthetics
DM201906-1469
2019
Rough-polishedThe Lab Grown Diamond Council ( LGDC) trade organization has retained an internationally recognized third party certifier and standards developer, SCS Global Services to create third party certfication.rough-polished.com, May 23, 1/4p.GlobalNews item - LGDC
DM201906-1475
2019
Rough-polishedSynthetics to be marked with special code.rough-polished.com, May 8, 1/4p.RussiaNews item - synthetics
DM201906-1488
2019
Zimnisky, P.What we call man-made diamonds could ultimately determine their success. Chart with various names for synthetics included.paulzimnisky.com, May 22, 3p.GlobalNews item - synthetics
DM201907-1630
2019
Diamonds.netLab-grown ban splits opinion on facebook.diamonds.net, May 30, 1/4p.GlobalNews item - synthetics
DM201907-1638
2019
Diamonds.netLightbox - the synthetics king?diamonds.net, June 5, 1/4p.GlobalNews item - Lightbox
DM201907-1646
2019
GIALightbox, a De Beers company has begun selling "white", pink and blue CVD GIA.edu, May 29, 1/2p.GlobalNews item - Lightbox
DM201907-1674
2019
MiningmxLucara's Eira Thomas applauds De Beers' Lightbox as 'positive development'.miningmx.com, June 12, 1p.GlobalNews item - Lightbox
DM201907-1676
2019
RapaportThe natural diamond industry says "no" to synthetics.Rapaport, June 5, 1/4p.GlobalNews item - synthetics
DM201907-1697
2019
Rough-polishedQuantum diamonds found use in an untectectable navigation device. Lockheed Marton and Element Sixrough-polished.com, June 11, 1/4p.GlobalNews item - Element Six
DM201907-1718
2019
Rough-polishedBy 2030, every tenth diamond may be synthetic - media.rough-polished.com, June 25, 1/4p.GlobalNews item - synthetics
DM201907-1719
2019
Rough-polishedLebish Polnauer comments that lab grown diamonds is probably the biggest scam this industry has ever seen.rough-polished.com, June 25, 1p.GlobalNews item - synthetics
DM201907-1728
2019
The Israeli Diamond IndustrySynthetic, LGD or man-made? How names affect consumers. Zimnisky commenten.israelidiamond.co.il, June 11, 1/2p.GlobalNews item - synthetics
DM201907-1737
2019
Zimnisky, P.Diamond by any other name?Diamonds in Canada, June pp. 8-10.GlobalNews item - synthetics
DM201908-1833
2019
Asia OneChina disrupting world's diamond sector, tapping sophisticated technology to produce cheap knock-offs ( has 56% of synthetic market).asiaone.com, July 29, 1p.ChinaNews item - synthetics
DM201908-1863
2019
Diamonds.netIndian differentiates synthetics imports. Classification code for lab-grown.diamonds.net, July 15, 1/4p.IndiaNews item - synthetics
DM201908-1887
2019
JCK NewsLab-grown diamond companies receive investment. Cornes stake in Green Rocks and Isrough.jcknews.com, July 16, 1/2p.Europe, Israel, Asia, JapanNews item - synthetics
DM201908-1924
2019
Rough-polished"Our goal is to bring clarity to the offering of Lab Grown diamonds". Asserts Chris Casey, President of Lab Grown Diamonds.rough-polished.com, July 8, 2p.GlobalNews item - synthetics
DM201908-1927
2019
Rough-polishedIndia introduces 8 digit HS code for synthetic rough diamonds.rough-polished.com, July 9, 1/4p.IndiaNews from - synthetics
DM201908-1930
2019
Rough-polishedSynthetic diamonds under the guise of natural on Alibaba e-commerce site - BBC.rough-polished.com, July 11, 1/4p.ChinaNews item - synthetics
DM201908-1944
2019
Rough-polishedThere has been a strict policy in Israel against LGDs; have been forbidden in IDE trading floor for years. rough-polished.com, July 22, 4p.Europe, IsraelNews item - synthetics
DM201908-1955
2019
Rough-polishedGSI opens its new testing laboratory in New York.rough-polished.com, July 29, 1/4p.United States, New YorkNews item - synthetics
DM201908-1973
2019
Times of IndiaDGFT issues separate HS code for lab-grown diamonds.timesofindia.com, July 8, 1/p.IndiaNews item - synthetics
DS201908-1823
2019
Wang, W., Moses, T.Current status of synthetic gem diamonds and their identification.www.minsocam.org/ MSA/Centennial/ MSA_Centennial _Symposium.html The next 100 years of mineral science, June 20-21, p. 35. AbstractGlobalHPHT, CVD, synthetics

Abstract: Diamond growth technology has experienced rapid progress in the past 20 years. Gemquality diamonds can be produced with both HPHT (high-pressure and high-temperature) and CVD (chemical vapor deposition) technologies. While HPHT technology basically mimics the growth conditions of natural diamonds in the earth’s mantle, the CVD method actually grows diamond in graphite-stable thermodynamic conditions. Faceted gem diamonds, both colorless and fancy-colored, are commercially produced up to 20 carats, comparable to topquality natural diamonds. At the same time, millions of melee-size gem diamonds (0.005 carat and up) are produced for the gem trade. Post-growth treatments (mainly HPHT annealing and irradiation under a high-energy beam) can not only remove an undesirable brown color but also introduce many types of fancy colorations such as pink/red and blue. Millions of carats of synthetic gem diamonds are produced annually for the gem trade globally. It is very important for the jewelry industry to be able to effectively and accurately separate synthetic diamonds from natural. All diamonds have lattice defects, from ppm to ppb concentrations or even lower. Main defects include nitrogen, boron, vacancies, dislocations, and combinations of these. Natural diamonds and their synthetic counterparts are supposed to have different defect configurations, such as defect type, concentration, coexistence, and distribution within a single crystal. Sometimes this difference can be very minor. Artificial treatment could be applied to intentionally minimize the differences to reduce the possibility of identifying synthetics. Natural and synthetic diamonds have a fundamentally different growth habit. Natural diamonds are dominated by a {111} growth sector. HPHT synthetic diamonds normally have multiple growth sectors such as {111}, {100}, and {110}. CVD diamond typically grows in the {100} direction only, but the uneven growth rate creates striations. The ability to capture defects varies significantly among different growth sectors, which are considered the most reliable features in identification. In gem laboratories, a host of gemological and spectroscopic technologies have been developed to enable this separation. GIA’s laboratory can identify every single synthetic diamond produced. Details of the current status of synthetic gem diamonds and their identification will be reviewed in this presentation.
DS201908-1823
2019
Wang, W., Moses, T.Current status of synthetic gem diamonds and their identification.www.minsocam.org/ MSA/Centennial/ MSA_Centennial _Symposium.html The next 100 years of mineral science, June 20-21, p. 35. AbstractGlobalHPHT, CVD, synthetics

Abstract: Diamond growth technology has experienced rapid progress in the past 20 years. Gemquality diamonds can be produced with both HPHT (high-pressure and high-temperature) and CVD (chemical vapor deposition) technologies. While HPHT technology basically mimics the growth conditions of natural diamonds in the earth’s mantle, the CVD method actually grows diamond in graphite-stable thermodynamic conditions. Faceted gem diamonds, both colorless and fancy-colored, are commercially produced up to 20 carats, comparable to topquality natural diamonds. At the same time, millions of melee-size gem diamonds (0.005 carat and up) are produced for the gem trade. Post-growth treatments (mainly HPHT annealing and irradiation under a high-energy beam) can not only remove an undesirable brown color but also introduce many types of fancy colorations such as pink/red and blue. Millions of carats of synthetic gem diamonds are produced annually for the gem trade globally. It is very important for the jewelry industry to be able to effectively and accurately separate synthetic diamonds from natural. All diamonds have lattice defects, from ppm to ppb concentrations or even lower. Main defects include nitrogen, boron, vacancies, dislocations, and combinations of these. Natural diamonds and their synthetic counterparts are supposed to have different defect configurations, such as defect type, concentration, coexistence, and distribution within a single crystal. Sometimes this difference can be very minor. Artificial treatment could be applied to intentionally minimize the differences to reduce the possibility of identifying synthetics. Natural and synthetic diamonds have a fundamentally different growth habit. Natural diamonds are dominated by a {111} growth sector. HPHT synthetic diamonds normally have multiple growth sectors such as {111}, {100}, and {110}. CVD diamond typically grows in the {100} direction only, but the uneven growth rate creates striations. The ability to capture defects varies significantly among different growth sectors, which are considered the most reliable features in identification. In gem laboratories, a host of gemological and spectroscopic technologies have been developed to enable this separation. GIA’s laboratory can identify every single synthetic diamond produced. Details of the current status of synthetic gem diamonds and their identification will be reviewed in this presentation.
DM201909-2193
2019
Rough-polishedLab-grown diamond jewellery exports from India to capture 2 % of US market.rough-polished.com, Aug. 14, 1/4p.India, United StatesNews item - synthetics
DM201910-2360
2019
Economic TimesLab-grown diamonds can revive India's struggling diamond industry.economictimes.com, Sept. 26, 1/4p.IndiaNews item - synthetics
DM201910-2375
2019
Industry JournalGlobal HPHT diamond market 2019: Global revenue by suppliers Sumitomo Electric, Hebei PlasmaDia, Element Six.Theindustryjournal.com, Sept. 16, 1/4p.GlobalNews item - synthetics
DM201910-2396
2019
Republic of MiningSilicon Valley wants to put diamond mines out of business - by growing gems in a lab using solar power.telegraph.co.uk, Sept. 5, 1p.United States, CaliforniaNews item - synthetics
DM201910-2410
2019
Rough-polishedIndia's lab-grown polished diamond export increases by 94%.rough-polished.com, Sept. 3, 1/4p.IndiaNews item - synthetics
DM201910-2460
2019
The Israeli Diamond IndustryWFDB President talks LGDs and credit.. Dwindling bank credit and provides solutions.[email protected], Sept. 4, 1/2p.GlobalNews item - synthetics
DM201911-2629
2019
Idex OnlineIs the BDB finally allowing lab grown diamond trading?idexonline.com, Oct. 17, 1/4p.IndiaNews item - synthetics
DM201911-2636
2019
JCK NewsIs there a resale market for lab-grown diamonds.jckonline.com, Oct. 25, 1/2p.GlobalNews item - synthetics
DM201911-2657
2019
RapaportLightbox to debut at Bloomingdale's, Reeds.rapaport, Oct. 17, 1/2p.United States, New YorkNews item - Lightbox
DM201911-2693
2019
Rough-polishedChina's young customers now take an interest in lab-grown diamonds.rough-polished.com, Oct. 7, 1/4p.ChinaNews item - synthetics
DM201911-2709
2019
Rough-polishedTrutnev calls on Alrosa to enter the synthetic market.rough-polished.com, Oct. 27, 1/4p.RussiaNews item - synthetics
DM201912-2938
2019
Rough-polishedDe Beers providing its own clarity about natural and laboratory grown diamonds.rough-polished.com, Nov. 21, 1/4p.GlobalNews item - synthetics
DM201912-2941
2019
Rough-polishedA customs code for differentiating natural and synthetic diamonds is adopted by EU.rough-polished.com, Nov. 20, 1/4p.EuropeNews item - synthetics
DM202001-0085
2019
Idex OnlineIs the ostrich finally lifting its head out of the sand? Lab diamonds new technology.idexonline.com, Dec. 12, 3p.GlobalNews item - synthetics
DM202001-0089
2019
JCK NewsSignet now selling lab-created diamonds at all U.S. Banners.jackonline.com, Dec. 14, 1/4p.United StatesNews item - Signet
DM202001-0130
2019
The Lane ReportImplentation of a pilot plant/demonstration facility to grow large diamonds ( Conn Centre) Da Vinci holdingsKentucky Advanced Materials Manufacturing, Dec. 27, 1p.United States, KentuckyNews item - KAMM
DM202002-0232
2020
Creamers Mining WeeklyCarnegie Institution seeks cut of rising lab grown diamond sales.creamersminingweekly, Jan. 10, /4p.United StatesNews item - synthetics
DM202002-0242
2020
Diamonds.netRough diamond sales slip as lab-grown industry sees growth.diamonds.net, Jan. 8, 1/4p.GlobalNews item - synthetics
DM202002-0248
2020
Diamonds.netLab-grown diamond jewelry brand backs 2020 Bafta awards.diamonds.net, Jan. 16, 1/4p.GlobalNews item - synthetics
DM202002-0274
2019
Rough-polishedSynthetic diamonds to be produced in the Moglino XEZ, Russia.rough-polished, Dec. 30, 1/4p.RussiaNews item - synthetics
DM202003-0376
2020
BBCNewsThe sparkling rise of lab-grown diamonds. bbcnews.com, Feb. 9, 6p.GlobalNews item - synthetics
DM202003-0411
2020
Diamonds.netDe Beers adds grading specs for Lightbox.diamonds.net, Feb. 19, 1p.GlobalNews item - Lightbox
DM202003-0415
2020
Global Newspaper 24Global synthetic diamond market growth drivers, opportunity and forecast 2026: Element Six, Sandvik Hyperion, ILJIN Diamond, Zhongnan Diamond.globalnewspaper24.com, Feb. 20, 4p.GlobalNews item - synthetics
DM202003-0420
2020
JCKLightbox to include more grading information with its diamonds.jackonline.com, Feb. 17, 1/4p.GlobalNews item - Lightbox
DM202003-0421
2020
London Mining JournalRetail margins could be boosting man-made diamond sales.londonmining journal.com, Feb. 19, 1/4p.GlobalNews item - synthetics
DM202003-0454
2020
Rough-polishedIIa Technologies successfully invalidates Element Six synthetic diamond patent?rough-polished.com, Feb. 10, 1/4p.GlobalNews item - Element Six
DM202003-0473
2020
Times Square ChronicleHow is a lab diamond created. ( basic info)timessquare chronicle.com, Feb. 4, 1/2p.GlobalNews item - synthetics
DS202004-0497
2020
Ashfold, M.N.R., Goss, J.P., Green, B., May, P.W., Newton, M.E., Peaker, C.V.Nitrogen in diamond.Chemical Reviews, Vol. 120, 4, 10.1021/ acs.chemrev.9b00578 50p. PdfGlobalHPHT, CVD, synthetics

Abstract: Nitrogen is ubiquitous in both natural and laboratory-grown diamond, but the number and nature of the nitrogen-containing defects can have a profound effect on the diamond material and its properties. An ever-growing fraction of the supply of diamond appearing on the world market is now lab-grown. Here, we survey recent progress in two complementary diamond synthesis methods: high pressure high temperature (HPHT) growth and chemical vapor deposition (CVD), how each is allowing ever more precise control of nitrogen incorporation in the resulting diamond, and how the diamond produced by either method can be further processed (e.g., by implantation or annealing) to achieve a particular outcome or property. The burgeoning availability of diamond samples grown under well-defined conditions has also enabled huge advances in the characterization and understanding of nitrogen-containing defects in diamond alone and in association with vacancies, hydrogen, and transition metal atoms. Among these, the negatively charged nitrogen-vacancy (NV-) defect in diamond is attracting particular current interest in account of the many new and exciting opportunities it offers for, for example, quantum technologies, nanoscale magnetometry, and biosensing.
DS202004-0497
2020
Ashfold, M.N.R., Goss, J.P., Green, B., May, P.W., Newton, M.E., Peaker, C.V.Nitrogen in diamond.Chemical Reviews, Vol. 120, 4, 10.1021/ acs.chemrev.9b00578 50p. PdfGlobalHPHT, CVD, synthetics

Abstract: Nitrogen is ubiquitous in both natural and laboratory-grown diamond, but the number and nature of the nitrogen-containing defects can have a profound effect on the diamond material and its properties. An ever-growing fraction of the supply of diamond appearing on the world market is now lab-grown. Here, we survey recent progress in two complementary diamond synthesis methods: high pressure high temperature (HPHT) growth and chemical vapor deposition (CVD), how each is allowing ever more precise control of nitrogen incorporation in the resulting diamond, and how the diamond produced by either method can be further processed (e.g., by implantation or annealing) to achieve a particular outcome or property. The burgeoning availability of diamond samples grown under well-defined conditions has also enabled huge advances in the characterization and understanding of nitrogen-containing defects in diamond alone and in association with vacancies, hydrogen, and transition metal atoms. Among these, the negatively charged nitrogen-vacancy (NV-) defect in diamond is attracting particular current interest in account of the many new and exciting opportunities it offers for, for example, quantum technologies, nanoscale magnetometry, and biosensing.
DS202004-0508
2020
Diggle, P.L., Dhaenens-Johannsson, U., Green, B., Welbourn, C.M., Tran Thi, T.N., Wang, W., Newton, M.E. Decoration of growth sector boundaries with single nitrogen vacancy centres in as-grown single crystal HPHT synthetic diamond.Diamond and Related Materials, arxiv.org 21p. Globalsynthetics

Abstract: Large (> 100 mm3), relatively pure (type II) and low birefringence single crystal diamond can be produced by high pressure high temperature (HPHT) synthesis. In this study we examine a HPHT sample of good crystalline perfection, containing less than 1 ppb (part per billion carbon atoms) of boron impurity atoms in the {001} growth sector and only tens of ppb of nitrogen impurity atoms. It is shown that the boundaries between {111} and {113} growth sectors are decorated by negatively charged nitrogen vacancy centres (NV?): no decoration is observed at any other type of growth sector interface. This decoration can be used to calculated the relative {111} and {113} growth rates. The bulk (001) sector contains concentrations of luminescent point defects (excited with 488 and 532 nm wavelengths) below 1011 cm?3 (10?3 ppb). We observe the negatively charged silicon-vacancy (SiV?) defect in the bulk {111} sectors along with a zero phonon line emission associated with a nickel defect at 884 nm (1.40 eV). No preferential orientation is seen for either NV? or SiV? defects, but the nickel related defect is oriented with its trigonal axis along the <111> sector growth direction. Since the NV? defect is expected to readily re-orientate at HPHT diamond growth temperatures, no preferential orientation is expected for this defect but the lack of preferential orientation of SiV? in {111} sectors is not explained.
DM202004-0598
2020
Idex onlineLightbox to provide basic grading info on its lab grown diamonds.indexonline.com, Feb. 27, 1/4p.GlobalNews item - Lightbox
DM202004-0612
2020
JCKLab grown diamond update: a look at how the industry is getting organized.jckonline.com, March 10, 2p.GlobalNews item - synthetics
DM202004-0629
2020
Rough-polishedGSI identified HTHP lab-grown diamonds with 'laser drill channel'.rough-polished, Feb. 27, 1/4p.IndiaNews item - synthetics
DM202004-0630
2020
Rough-polishedHigh tech trend is most promising for industries using diamonds. Synthesis Technologyrough-polished, Feb. 27, 7p.GlobalNews item - synthetics
DM202004-0681
2020
The Israeli Diamond IndustryStanford scientists 'cheat thermodynamics' to create diamonds.en.israelidiamond .co.il, March 11, 1/4p.GlobalNews item - synthetics
DM202004-0682
2020
TheLoop21Global HPHT diamond market business forecast ( 2020-2029) II Element Six, Sumitomo Electric….. theloop21.com, March 5,1/4p.GlobalNews item - synthetics
DS202004-0548
2020
Zaitsev, A., Kazuchits, N.M., Kazuchits, V.N., Wang, W.Nitrogen doped CVD diamond: nitrogen concentration, color and internal stress.Diamond and Related Materials, March Globalsynthetics

Abstract: Single crystal CVD diamond has been grown on (100)-oriented CVD diamond seed in six layers to a total thickness of 4.3 mm, each layer being grown in gas with increasing concentration of nitrogen. The nitrogen doping efficiency, distribution of color and internal stress have been studied by SIMS, optical absorption, Raman spectroscopy and birefringence imaging. It is shown that nitrogen doping is very non-uniform. This non-uniformity is explained by the terraced growth of CVD diamond. The color of the nitrogen-doped diamond is grayish-brown with color intensity gradually increasing with nitrogen concentration. The absorption spectra are analyzed in terms of two continua representing brown and gray color components. The brown absorption continuum exponentially rises towards short wavelength. Its intensity correlates with the concentration of nitrogen C-defects. Small vacancy clusters are discussed as the defects responsible for the brown absorption continuum. The gray absorption continuum has weak and almost linear spectral dependence through the near infrared and visible spectral range. It is ascribed to carbon nanoclusters which may form in plasma and get trapped into growing diamond. It is suggested that Mie light scattering on the carbon nanoclusters substantially contributes to the gray absorption continuum and determines its weak spectral dependence. A Raman line at a wavenumber of 1550 cm?1 is described as a characteristic feature of the carbon nanoclusters. The striation pattern of brown/gray color follows the pattern of anomalous birefringence suggesting that the vacancy clusters and carbon inclusions are the main cause of internal stress in CVD diamond. A conclusion is made that high perfection of seed surface at microscale is not a required condition for growth of low-stress, low-inclusion single crystal CVD diamond. Crystallographic order at macroscale is more important requirement for the seed surface.
DM202005-0810
2020
JCKBe wary of consumer-media coverage of lab-grown diamonds.JCKOnline.com, April 1, 1/4p.GlobalNews item - synthetics
DM202005-0811
2020
JCK OnlinePure Grown, IIa, Fenix Challenge lab-grown diamond patent claims ( Carnegie)JCKOnline.com, April 15, 1/2p.GlobalNews item - Carnegie
DM202006-0997
2020
Diamonds.netLightbox delays new production plant to Q1 2021. diamonds.net, May 8, 1/4p.United States, OregonNews item - Lightbox
DS202006-0923
2020
Howell, D., Collins, A.T., Loudin, L.C., Diggle, P.L., D'Haenens-Johansson, U.F.S., Smit, K.V., Katrusha, A.N., Butler, J.E., Nestola, F.Automated FTIR mapping of boron distribution in diamond. DiaMap_IIb ( synthetics)Diamonds & Related Materials, In press available, 30p. PdfGlobalsynthetics

Abstract: Type IIb diamonds are those that contain more boron than nitrogen. The presence of this uncompensated boron gives rise to absorption in the infrared part of the electromagnetic spectrum, extending into the visible region and often resulting in blue colouration. Here we report on the expansion of the DiaMap freeware (for the automated spectral deconvolution of Type I [nitrogen containing] diamonds) to work on Type IIb diamonds, returning concentrations from three boron-related absorption bands, and determining which band provides the most reliable value. The program uses the calibration coefficients of Collins (2010), which show good relative agreement between the three bands, but might require some further study to confirm their absolute accuracy to the uncompensated boron concentration. The methodology of DiaMap_IIb is applicable to all Type IIb diamonds, both natural and synthetic. Analysis of high-resolution Fourier-transform infrared (FTIR) maps of two high-pressure high-temperature (HPHT) synthetic diamonds using DiaMap_IIb, confirm the growth sector dependence of the boron incorporation. Partitioning of boron strongly favours the octahedral {111} sectors.
DM202007-1232
2020
DiamondworldHow lab grown CVD diamonds can be India's ace card in global gems & Jewellery industry.diamondworld.net, May 26, 1/2p.IndiaNews item - synthetics
DM202007-1294
2020
Rough-polishedElement Six launches first commercially available, general purpose quantum grade diamond.rough - polished.com, June 16, 1/4p.Europe, United KingdomNews item - Element Six
DM202007-1334
2020
The Israeli Diamond IndustryNDC's new website goes all- natural.israelidiamond.co.il, June 24, 1/4p.GlobalNews item - NDC
DM202008-1468
2020
Bates, R.Develop their own price scale, seller says. Lab grownJCKOnline.com, July 7, 1p.GlobalNews item - synthetics
DM202008-1498
2020
Idex onlineUpdated bible of lab-grown diamonds. Simic and Deljanin.idexonline.com, July 9, 1/2p.GlobalNews item - synthetics
DM202008-1553
2020
Rough-polishedBotswana cannot produce, sale synthetic diamonds.rough-polished.com, July 23, 1/4p.Africa, BotswanaNews item - synthetics
DM202009-1704
2020
Diamonds.netGIA to give full color, clarity grades for lab-grown.diamonds.net, Aug. 12, 1/4p.GlobalNews item - synthetics
DM202009-1709
2020
ForbesSustainable mining: the handprint is just as important as the footprint. Supply chain.Forbes.com, July 29, 1p.GlobalNews item - synthetics
DS202009-1658
2020
Shang, S.Y., Tong, Y., Zhang, S.X., Huang, F.L.Study on phase transformation mechanism of various carbon sources in detonation synthesis of diamond.Fullerenes, nanotubes and carbon nanostructures, Vol. 28, 11, pp. 877-885.globalsynthetics

Abstract: In this paper, the phase transformation mechanism of various carbon sources in the synthesis of diamond by direct detonation method was studied. Through designing comparison experiment and the X-ray diffraction (XRD) characterization technique, an experimental study was conducted on the detonation process with the external of the combined carbon source and free carbon source, and without the participation of the external carbon source. The laws of phase transformation of the various carbon sources are obtained, in which the surplus carbon in the explosives participates in the formation of diamonds through the collision growth of droplet-like carbon, the added bonded carbon does not participate in the synthesis of diamond, and the added free carbon forms diamonds through the Martensitic transformation.
DS202010-1879
2020
Song, Z., Lu, T., Liu, H., Dai, H., Ke, J., Zhu, W., Zhang, J.Identification of Type IIa blue CVD diamonds from Huzhou SinoC semiconductor.Journal of Gemmology, Vol. 37, 3, pp. 306-313.Chinasynthetics

Abstract: Gemmological and spectroscopic characteristics are reported for two type IIa blue CVD synthetic diamonds from Huzhou SinoC Semiconductor Science and Technology Co. Ltd, China. These are the first relatively large (1.76 and 2.63 ct) blue CVD synthetics examined in NGTC’s laboratories, and their colour was slightly brighter than other blue synthetic diamonds that we have encountered. In the DiamondView, they fluoresced blue (with purple-red in one sample), which is unusual for CVD synthetics. The mid- and near-IR absorption spectra of one sample showed no hydrogen-related features, while the other synthetic diamond showed a weak absorption at 6853 cm?1attributed to hydrogen. The spectra of both samples had a very weak line at 1332 cm?1 due to isolated nitrogen and a distinct band at 9282 cm-1 related to radiation. A very strong GR1 absorption feature was detected by UV-Vis-NIR spectroscopy. Photoluminescence spectra obtained at liquid-nitrogen temperature recorded emissions related to radiation (mainly in the 480-510 nm region), N-V and [Si-V]- centres, and several unassigned weak emissions. This combination of optical centres strongly suggests that these samples underwent post-growth treatment to improve their transparency before they were irradiated to produce blue colouration.
DM202011-2097
2020
Diamonds.netIGI grades record black lab-grown diamond 116 carat.Diamonds.net, Oct. 1, 1/4p.GlobalNews item - synthetics
DS202011-2056
2020
Nemeth, P., McColl, K., Garvie, L.A.J., Salzmann, C.Complex nanostructures in diamond. Nature Materials, doi:10.1038/s4 1563-020-0759-8 7p. PdfGlobalmeteorites, synthetics

Abstract: Meteoritic diamonds and synthesized diamond-related materials contain a wide variety of complex nanostructures. This Comment highlights and classifies this structural complexity by a systematic hierarchical approach, and discusses the perspectives on nanostructure and properties engineering of diamond-related materials.
DM202011-2133
2020
Rough-polishedSynthetic diamonds factory to be built in Russia's Pskov Province. ( radio-electronic industry)rough-polished.com, Oct. 9, 1/4p.RussiaNews item - synthetics
DM202011-2135
2020
Rough-polished3rd edition of best selling laboratory grown diamonds "bible" set for release.rough-polished.com, Oct. 8, 1/4p.GlobalNews item - synthetics
DM202011-2137
2020
Rough-polishedDe Beers LGD Lightbox expands to independents in the USA and Canada.rough-polished.com, Oct. 8, 1/4p.United States, CanadaNews item - Lightbox
DM202011-2163
2020
Rough-polishedNew world record in diamond growing.. New World Technology 129.47 caratrough-polished.com, Oct. 22, 1/4p.RussiaNews item - synthetics
DM202012-2265
2020
Bradby, J.Diamond bling made within minutes. ( room temperature) Sciencetimes.com, Nov. 19, 2p.AustraliaNews item - synthetics
DM202012-2297
2020
jCKWD settles litigation with Pure Grown, IIa technologies. M7D Corp. JCKonline.com, Nov. 26, 1p.United StatesNews item - Carnegie
DM202012-2318
2020
Rough-polishedDiamond growing technology to be discussed at November webinar.Rough-Polished.com, Nov. 10, 1/4p.United StatesNews item - synthetics
DM202012-2346
2020
YahooLightbox ramps up lab diamond production with new Oregon facility.yahoo.com, Oct. 29, 1/4p.United States, OregonNews item - Lightbox
DM202101-0096
2020
Rough-polishedChinese manufacturer grows largest CVD grown diamond to date 12.75 ctsrough-polished.com, Nov. 30, 1/4p.ChinaNews item - synthetics
DM202101-0117
2020
Rough-polishedBharat Diamond Bourse to vote on lifting synthetics ban.Rough-polished.com, Dec. 22, 1/4p.IndiaNews item - synthetics
DM202101-0130
2020
Rough-polishedBDB members give 'in-principle approval' for LGD trading. Bharat Diamond BourseRough-polished.com, Dec. 29, 1/4p.IndiaNews item - synthetics
DM202102-0269
2021
Diamonds.netGIA spots rare inscription fraud in simulant. ( moissanite)diamonds.net, Jan. 27, 1p.United States, CaliforniaNews item - synthetics
DM202102-0280
2021
Jewellery FocusGreen Rocks created diamonds becomes first lab grown grower. Jewellery Focus, Jan. 14, 1/4p.United States, FloridaNews item - synthetics
DS202102-0220
2020
Shearman, R.What is the story behind Aether and how did the business start? Gems & Gemology , Vol. 29, 4, pp. 22-24. pdfEurope, Switzerlandsynthetics
DM202103-0459
2021
Diamonds.netDiamonds with fake inscriptions turn up at GIA.Diamonds.net, Feb. 23, 1/4p.United StatesNews item - synthetics
DM202103-0463
2021
Financial PostDiamonds from thin air: the search for a carbon neutral jewel. Lab grown production.nationalpost.com, Feb. 23, 2p.GlobalNews item - synthetics
DM202103-0485
2021
New York MarketKey trends in synthetic diamond industry - global market forecast 2021-2026.nymarket.com, https://www.nymarketreports.com /uncategorized /102498/key-trends -in-synthetic-diamond- industry-impacting- the-global-market-with- forecast-2021-2026/GlobalNews item - synthetics
DM202103-0494
2021
Rough-polishedIndia seeks to develop production of lab-grown diamonds.Rough-polished.com, Feb. 3, 1/4p.IndiaNews item - synthetics
DM202103-0499
2021
Rough-polishedChina dominates production of lab-grown diamonds.Rough-polished.com, Feb. 9, 1/4p.ChinaNews item - synthetics
DM202103-0503
2021
Rough-polishedWebinar: LGDs journey from 'factory to market'. CVD Rough-polished.com, Feb. 11, 1/4p.GlobalNews item - synthetics
DM202104-0641
2021
Diamond WorldGlobal LGD annual output to touch 19.2 million carats by 2030. diamondWorld.net, March 17, 1/4p.IndiaNews item - synthetics
DM202104-0644
2021
Diamonds.netGIA now giving details of lab grown treatments.Diamonds.net, March 16, 1/4p.United StatesNews item - synthetics
DM202104-0648
2021
Golan, E.A veteran diamond industry analyst trains his eye on lab-grown prices.jckonline.com, March 22, 3p.GlobalNews item - synthetics
DM202104-0715
2021
Rough-polishedShashikant D. Shah "Mined diamonds and LGDs are separate categories."rough-polished.com, March 22, 5p.GlobalNews item - synthetics
DM202105-0809
2021
Bates, R.Why an ad watchdog warned the Natural Diamond Council: Diamond Foundryjckonline.com, Apr. 28, 1/2p.GlobalNews item - NDC
DM202105-0827
2021
Diamonds.netDiamond Foundry gets warning over ads.diamonds.net, Apr. 1, 1/4p.GlobalNews item Diamond Foundry
DM202105-0831
2021
Diamonds.netDiamond Foundry value hits $ 1.8 billion after fund raising. Syntheticsdiamonds.net, Apr. 29, 1/4p.GlobalNews item - Diamond Foundry
DS202105-0762
2021
Dong, B., Shi, C., Xu, Z., Wang, K., Luo, H., Sun, F., Wang, P., Wu, E., Zhang, K., Liu, J., Song, Y., Fan, Y.Temperature dependence of optical centers in 1b diamond characteristics by photoluminescence spectra. CVDDiamond & Related Materials, Vol. 116, 108389, 10p. PdfGlobalsynthetics
DM202105-0840
2021
JckIs the tide turning for lab grown diamonds? ( no new diamond mines?)jckonline.com, Apr. 29, 1p.GlobalNews item - synthetics
DM202105-0893
2021
Rough-polishedPandora takes eithical stand against mined diamonds. ( lab grown) syntheticsroughpolished.com, May 5, 1/4p.GlobalNews item - Pandora
DS202105-0788
2021
Savage, N.Quantum Diamond Sensors Synthetic versions of the super-hard gem stone are driving the development of a class of device with applications in biomedicine and beyond.https://youtu.be/VCT0wDLyvSs, https://www.nature.com/articles /d41586-021-00742-4? utm_source=Nature+Briefing&utm_campaign=d5a18a3501- briefing-dy-20210329& utm_medium=email&utm_term= 0_c9dfd39373- d5a18a3501-42627851Globalsynthetic - uses
DS202105-0797
2021
Turner, B. Lab made hexagonal diamonds are stronger than the real thing. livescience.com, https://www.livescience. com/stronger-hexagonal -diamonds-created.htmlGlobalsynthetics
DM202106-0994
2021
Diamonds.netNatural diamond council seals China partnership. Chow Tai Fookdiamonds.net, May 20, 1/4p.ChinaNews item - NDC
DM202106-0999
2021
Financial TimesDiamond industry takes on lab-grown threat.financialtimes.com, May 21, 1p.GlobalNews item - synthetics
DM202106-1001
2021
Idex OnlinePandora's PR master stroke.idexonline.com, May 5, 1/2p.GlobalNews item - Pandora
DM202106-1002
2021
Idex OnlinePandora ditches mined diamonds in carbon neutral plan.idexonline.com, May 5, 1/4p.GlobalNews item - Pandora
DM202106-1010
2021
JCKGIA finding more lab-growns being passed off as naturals.jckonline.com, May 18, 2p.GlobalNews item - synthetics
DM202106-1013
2021
Jewellery FocusAether Diamonds receives world's first vegan certification. ( carbon from air)jewelleryfocus.co.uk, May 21, 1/4p.United StatesNews item - synthetics
DS202106-0952
2021
Li, W., Xie, X., Song, J., Xie, R., Wang, J., Li, G.,Hou, H., Lu, J.Assessment and source identification of toxic metals in an abandoned synthetic diamond production plant from Anhui Province, China.Environmental Forensics, Vol. 22, 3-4, pp. 340-350. abstract onlyChinasynthetics

Abstract: In this study, soil and sediment samples along with groundwater samples were collected and analyzed from an abandoned synthetic diamond production plant in Anhui Province, South China. Chemical analysis, pollution characteristics analysis, and correlation analysis were conducted to assess and to determine the source(s) of the toxic metal and organic pollutions in the study sites. The Co and Ni concentrations of soil samples collected from the production area exceed the risk screening value for contaminated development land in Soil Environment Quality Standards for soil pollution risk control on construction land (Trial) of China, while the concentrations of other toxic elements such as Cr, Cu, and Zn are lower than the screening value. The PCA and HCA results are consistent with the correlation coefficient analysis and indicate that industrial activities are the main sources of Co and Ni. The chemical composition and source analysis results of soil and groundwater show that toxic metals originating from catalyst and low pH value from acid waste water should be the main point of concern in the synthetic diamond production plant.
DM202106-1028
2021
Rough-polishedNatural diamond industry organizations ask Pandora to correct recent public statement.roughpolished.com, May 10, 1/4p.GlobalNews item - Pandora
DM202106-1034
2021
Rough-polishedDMIA to showcase diamond verification equipment in New York.roughpolished.com, May 11, 1/4p.United StatesNews item - DMIA
DM202106-1036
2021
Rough-polishedNatural diamond industry organizations ask Pandora to correct recent public statement.roughpolished.com, May 10, 1/4p.GlobalNews item - Pandora
DM202106-1053
2021
Rough-polishedChoi Tai Fook & NDC partner to promote natural diamonds.roughpolished.com, May 24, 1/4p.ChinaNews item - NDC
DM202106-1059
2021
Rough-polishedLab-grown diamond sales volume to exceed that of natural diamonds in future - analyst. Zimniskyroughpolished.com, May 26, 1/4p.GlobalNews item - synthetics
DM202106-1062
2021
Rough-polishedDMIA Diamond Verification instruments showcase to kick off on June 1.roughpolished.com, May 28, 1/4p.United States, New YorkNews item - DMIA
DM202106-1064
2021
RussiaSiberians synthesized diamonds in rare-earth metal melts.https://info.sibnet .ru/article/ 587959, https://treo. substack.comRussiaNews item - synthetics
DM202107-1175
2021
Gruske, C.Diamond versus diamond.CIM Magazine, June 8, 2p. PdfGlobalNews item - synthetics
DM202107-1179
2021
Idex OnlineRecord imposter 6.18 ct "natural diamond" was lab-grown.idexonline.com, June 11, 1/4p.Asia, ThailandNews item - IGI
DM202107-1200
2021
Rough-polishedChina's NGTC laboratory tests new variety of CVD synthetic diamonds. roughpolished.com, June 4, 1/4p.ChinaNews item - synthetics
DM202107-1210
2021
Rough-polishedWorld's first regulator-approved diamond coin launched. IGI Diamond Standard Coinroughpolished.com, June 11, 1/4p.GlobalNews item - IGI
DM202108-1349
2021
Diamonds.netA call for synthetics transparency.diamonds.net, July 22, 1/4p.GlobalNews item - synthetics
DM202108-1360
2021
Idex onlineThe first global institute to fully grade lab grown diamonds . IGIidexonline.com, July 15, 1/4p.GlobalNews item - IGI
DM202108-1411
2021
Rough-polishedSwitching to synthetic gems could harm the very communities consumers worry about. roughpolished.com, July 28, 1/4p.GlobalNews item - synthetics
DM202109-1528
2021
JCKLightbox to offer bigger, better diamonds in colors, pink, blue, and white and up to 2 cts @ $ 800.00 De BeersJCKonline.com, Aug. 21, 1p.GlobalNews item - Lightbox
DM202109-1572
2021
The diamond LoupeThe Guardian: Why LGD might not be ethical alternative. thediamondloupe.com, July 7, 1/4p.GlobalNews item - LGD
DS202110-1600
2021
Barrie, E., Eaton-Magana, S.CVD Laboratory-grown diamond with counterfeit GIA inscription.Gems & Gemology, Vol. 57, 2, summer pp. 150-152. gia.edu/gems-gemologyUnited States, Californiasynthetic

Abstract: In recent months, GIA has seen a number of laboratory-grown diamonds submitted for update or verification services with counterfeit inscriptions referencing GIA natural diamond reports ("GIA laboratory prevents attempted fraud"). One recent example is a 3.07 ct round brilliant submitted to the Antwerp lab for update service (figure 1). It bore an inscription matching a GIA report for a natural diamond that had been submitted in 2018. Microscopic examination quickly revealed, however, that the inscription was in fact fraudulent. Further analysis indicated a laboratory-grown origin.
DM202110-1652
2021
Bates, R.Diamond Foundry is planning to open second lab-grown facility in Trujillo, Spain.JCKOnline.com, Sept. 18, 1/3p.Europe, SpainNews item - Diamond Foundry
DM202110-1669
2021
Diamonds.netPodcast: from tech mogul to lab-grown advocate. Lusixdiamonds.net, Sept. 13, 1/4p.Europe, IsraelNews item - Lusix
DM202110-1686
2021
LivemintAre lab-grown diamonds really better for the Earth?livemint.com, Sept. 26, 1p.IndiaNews item - synthetics
DM202110-1721
2021
Rough-polishedNDC announces 'ASSURE program 2.0' to protect consumers and support DVI manufacturers.rough-polished.com, Sept. 29, 1/4p.GlobalNews item - NDC
DM202111-1799
2021
Bates, R.The term "diamond simulant" is confusing and should be banned.jckonline.com, Oct. 20, 3p.GlobalNews item - moissanite, cubic-zirconia
DM202111-1841
2021
Mining Review AfricaNatural vs lab-grown diamonds - where does the true value lie? Discussion and comments by Campbell and ZimniskyMiningreviewfrica.com, Oct. 5, 3p.GlobalNews item - synthetics
DM202111-1875
2021
Rough-polishedGemological Science International launches ASSURANCE by GSI tm.rough-polished.com, Oct. 25, 1/4p.GlobalNews item - ASSURANCE
DM202111-1876
2021
Rough-polishedCTF tests its lab-grown brand 'Cama' on Tmall website.rough-polished.com, Oct. 25, 1/4p.ChinaNews item - Cama
DM202111-1889
2021
The Israeli Diamond IndustryDe Beers' lab-grown diamonds company begins selling loose stones.en.israelidiamond industry.com, Oct. 19, 1/4p.GlobalNews item - Lightbox
DM202112-1967
2021
Bates, R.Is the owner of Lightbox supplying Pandora's Box?jckonline.com, Nov. 5, 1p.GlobalNews item - Pandora
DM202112-1976
2021
Creamers Mining WeeklyLab-grown diamonds are latest victims of China's power crisis.creamersminingweekly, Nov. 1, 1/4p.ChinaNews item - synthetics
DM202112-1992
2021
Diamonds.netLightbox now declaring post-growth treatments.diamonds.net, Nov. 4, 1/4p.GlobalNews item - Lightbox
DM202112-2010
2021
Idex OnlineTwo thirds of US independent jewelers now sell lab growns.idexonline.com, Oct. 29, 1/4p.United States, CanadaNews item - synthetics
DS202112-1938
2020
Lysakovskyi, V.V., Ivakhnenko, S.O., Kvasntsya, V.M., Kovalenko, T., Burchenia, A.V. Features of morphogenesis of diamond single crystals more than 2 carats grown by temperature gradient method.Journal of Crystal Growth, Vol. 550, 12890, 6p. PdfGlobalsynthetics

Abstract: The morphology of ultra-large polyhedra of diamond grown under high pressure and high temperature (5.6-5.8 GPa and 1400-1700 °C) in a growth system based on Fe-Co was studied. The grown diamond polyhedra are crystals of an octahedral habit with minor faces of a cube, rhombic dodecahedron, and trapezohedrons {3 1 1}, {5 1 1} and {7 1 1}. The morphological features of the grown crystals are the skeletal growth of faces of various simple forms and the so-called "binary growth" of single crystal. The characteristic of these growth phenomena is given and possible reasons for their manifestation are described.
DM202112-2053
2021
Rough-polishedZhadanov commentary " The use of diamonds in high technologies is the main and key target of the diamond synthesis technologies.rough-polished.com, Nov. 15, 8p.GlobalNews item - synthetics
DM202112-2066
2021
Rough-polishedInternational Grown Diamond Association launches IGDA 2.0.rough-polished.com, Nov. 11, 1/4p.GlobalNews item - IGDA
DM202201-0071
2021
Diamonds.netOut & About watching De Beers grow diamonds in Oregon.diamonds.net, Dec. 16, 1/4p.United States, OregonNews item - synthetics
DM202201-0080
2021
Idex OnlineBlessed are the diamond makers. ( Pope)idexonline.com, Dec. 10, 1/2p.GlobalNews item - synthetics
DM202201-0093
2021
Jeweller MagazineChina leading the way for lab-created diamond production.jewellermagazine.com, Nov. 28, 3p.ChinaNews item - synthetics
DM202201-0128
2021
Rough-polishedConsumer appetite for lab brown diamonds grows with desire for larger diamonds.rough-polished.com, Dec. 13, 1/4p.GlobalNews item - synthetics
DM202201-0152
2021
Shor, R.Larger lab-grown diamonds and crypto-millions - our brave new world for 2022.Consultant, linkedin Dec. 21, 3p.GlobalNews item - synthetics
DM202202-0252
2022
Diamonds.netIGI grades recent blue lab-grown diamond 150.42 ct syntheticdiamonds.net, Jan. 23, 1/4p.United StatesNews item - synthetics
DM202202-0312
2022
The Israeli Diamond CompanyRussian LGD producer promises to double production in 2022. Synthesis technology is located in Moglino special economic zone.isrealidiamond.co.il, Jan. 17, 1/4p.RussiaNews item - synthetics
DM202203-0375
2022
All africaSynthetic diamonds no threat to sector NDTC.allafrica.com, Feb. 15, 1/4p.Africa, NamibiaNews item - synthetics
DM202203-0377
2022
Bates, R.Lab-grown diamonds setting new size records.jckonline.com, Feb. 1, 1p.Europe, Ukraine, ChinaNews item - synthetics
DM202203-0424
2022
Jeffay, J.LUSIX, the lab-grown company, has raised $ 45 mln to build new plant in Israel to expand its production.idexonline.com, Feb. 10, 1/4p.Europe, IsraelNews item - LUSIX
DM202203-0428
2022
Jewellery FocusSpot the difference: lab-grown vs mined diamonds.jewelleryfocus.co.uk, Feb. 9, 2p.GlobalNews item - synthetics
DM202203-0447
2022
Rough-polishedPart II: synthetic diamonds … with the success of growing gem-quality diamonds at a reasonable cost, next step was to achieve larger sizes, improve quality, and produce an array of colour options to offer consumers.rough-polished.com, Jan. 31, 2p.GlobalNews item - synthetics
DM202203-0455
2022
Rough-polishedLab-grown diamond producer Lusix expands team. Axelrodrough-polished.com, Feb. 4, 1/4p.Europe, IsraelNews item - Lusix
DM202203-0482
2022
The Israeli Diamond CompanyBritish Company makes record breaking LGD 150.42 carats. Meylor Globalen.israelidiamond.co.il, Feb 3, 1/4p.Europe, United KingdomNews item - Meylor Global
DM202204-0552
2022
Bates, R.Interview with LUSIX chairman Benny Landa.jckonline.com, Mar. 7, 5p.Europe, IsraelNews item - Lusix
DM202204-0574
2022
Diamonds.netAlrosa to stop funding the Natural Diamond Council.diamonds.net, Mar. 6, 1/4p.GlobalNews item - NDC
DM202204-0577
2022
Diamonds.netChow Sang Sang launches lab-grown platform.diamonds.net, Mar. 24, 1/4p.Asia, Hong KongNews item - synthetics
DM202204-0583
2022
Idex onlineDiamond Foundry sues US government over polishing tariffs on China.idexonline.com, Mar. 24, 1/4p.China, United StatesNews item - Diamond Foundry
DM202204-0585
2022
JCKWhy growing diamonds using captured carbon is the next frontier.jckonline.com, Mar. 14, 4p.GlobalNews item - synthetics
DM202204-0588
2022
Jeffay, J."Your big diamond might be fake" - provocative documentary launches in US.idexonline.com, Mar. 13, 1/3p.United StatesNews item - synthetics
DM202204-0592
2022
Levy, A.An industry veteran on how lab-grown diamonds are pushing the trade to experiment.jckonline.com, Mar. 21, 2p.GlobalNews item - synthetics
DM202204-0629
2022
Rough-polishedMillennials hot to buy lab grown diamonds.Rough-polished.com, Mar. 18, 1/4p.GlobalNews item - synthetics
DM202204-0643
2022
Scott, D.Why can't mined and lab-grown diamond supports get along?jckonline.com, Mar. 7, 3p.GlobalNews item - synthetics
DM202205-0780
2022
Idex OnlineDiamond workers defending Ukraine. Meylor Global syntheticsIdexonline.com, Apr. 7, 1p.Europe, UkraineNews item - Meylor Global
DM202205-0793
2022
JCK5 Things I learned at Lightbox tour.Jckonline.com, Apr. 2, 3p.United StatesNews item - Lightbox
DM202205-0813
2022
Rough-polishedDr. Reinhorn of Lusix "we see many opportunities to grow".rough-polished.com, Mar. 28, 3p.Europe, IsraelNews item - LUSIX

 
 

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