2ct 2.5ct 3ct Fancy Yellow Lab Grown Colored Diamonds VVS VS

Jul 04, 2022
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2ct 3ct Fancy Yellow Color Lab Grown Colored Diamonds With VVS VS Clairty Lab Grown Colored Diamonds Description There are two main methods to prepare synthetic diamond: high pressure high temperature method (HPHT) and chemical vapor deposition (CVD). High temperature and high pressure catalytic technology (HPHT) simulates the natural environment in which diamonds form 150 kilometers below the earth's surface. At about 2000 degrees Celsius and 5.8 atmospheres of high
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