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Why after HPHT treatment still natural diamond remain brown color

HPHT (high pressure, high temperature) treatment is used to improve the color of diamonds that have certain impurities such as nitrogen. The treatment can turn the diamond from a yellow or brown color to a more desirable color such as white. However, in some cases, the treatment does not completely remove all of the impurities and the diamond remains a brown color.





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CBKM BOCU
CBKM BOCU
10月31日

EPTU Machine ETPU Moulding…

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KSD Miner KSD Miner

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BCH Miner BCH Miner

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いいね!
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