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2021-10-9 · 1.0mm-6.0mm Abrasive Grain Sizes and Making jewelry Usage hpht lab grown cvd diamond Dear Seller,I am a buyer from Andrus located in United States of America. I would like to buy Large Size Hpht Cvd White...
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2021-6-8 · Synthetic diamonds (Yellow River) are artificially synthesized in the laboratory and have basically the same physical properties, chemical composition and crystal structure as natural diamonds.The current methods for synthesizing diamonds mainly include high-temperature and high-pressure synthesis (HPHT synthesis) and chemical vapor deposition (CVD), Which are also called as .
2021 Hot sale Synthetic Hpht diamond Large Size White Rough diamonds uncut Gemstone Shape: Uncut regular Carat range: 3.0 - 4.0 carats Square 10-10.99ct cvd rough laboratory to create diamond rough
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2021 Hot sale Synthetic Hpht diamond Large Size White Rough diamonds uncut Gemstone Shape: Uncut regular Carat range: 3.0 - 4.0 carats Square 10-10.99ct cvd rough laboratory to create diamond rough
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