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Welcome to Hydray, buy HPHT/CVD laboratory grown diamonds
2014-1-1 · HPHT type Ib (100)-oriented synthetic diamonds were used as substrates. For sample A, CVD diamond growth was carried out on 3 × 3 mm 2 substrate under standard growth conditions as described in reference [25] .
CVD Rough 9.095 carat. CVD Rough 11.435 carat. CVD Rough 12.375 carat. CVD Rough 13.188 carat. CVD Rough 15.191 carat. CVD Rough Diamonds. HPHT Large Rough Synthetic Diamond. HPHT Rough Diamonds. HPHT Rough High Quality White Diamond.
2021-11-22 · Unlike HPHT diamonds, CVD diamonds are less expensive to create because they only require moderate heat and far lower pressure. The creators can also control the color of the diamonds. Carbon and hydrogen create colorless .
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Synthetic diamond is also widely known as HPHT diamond or CVD diamond, after the two common production methods (referring to the high-pressure high-temperature and chemical vapor deposition crystal formation methods, respectively).
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2019-12-30 · What Is the History of CVD Diamonds? The first lab-grown diamond was created by General Electric back in 1955. DeBeers bought the technology and it disappeared for many years. And while the GE/DeBeers diamond was grown using the HPHT approach, it set the stage for later technological advances that would eventually lead to the creation of CVD diamonds.
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2020-8-9 · ,。 — (HPHT) (CVD)。
2021-12-1 · Recently, Chemical Vapor Deposition (CVD) synthetic diamonds have been introduced to the jewelry gem market, as CVD technology has been making considerable advances.
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