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CRYSDIAM Rectangular 10-10.5ct cvd uncut diamond cvd rough diamond hpht cvd diamond stone Ningbo Crysdiam New Material Technology Co., Ltd. 7.200,00 $-7.560,00 $ / Stück
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2021-2-21 · The diamond is a natural diamond bare stone as the mother stone, using high-purity methane, plus hydrogen, nitrogen and other gases to assist, in a microwave oven under high pressure, so that the same carbon molecules in methane as diamond continue to accumulate on the rough diamond. Layer by layer, it can form transparent diamonds up to 10 carats.
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2021-2-21 · The diamond is a natural diamond bare stone as the mother stone, using high-purity methane, plus hydrogen, nitrogen and other gases to assist, in a microwave oven under high pressure, so that the same carbon molecules in methane as diamond continue to accumulate on the rough diamond. Layer by layer, it can form transparent diamonds up to 10 carats.
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2021-2-21 · What is CVD/HTHP diamond? It uses graphite or diamond powder, or a mixture of graphite and diamond powder as a carbon source, and dissolves them in an -nickel alloy catalyst.The dissolved carbon in the catalyst enters the high-pressure chamber by the temperature gradient of the high-temperature and ultra-high pressure reaction chamber. . Precipitated and grown gem-grade .
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