CVD vs HPHT Diamonds - The Complete Difference

Limelight Diamonds | 2023

Diamonds produced through the CVD process are 100% carbon & are purest, whereas HPHT diamonds contain chemical impurities.

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In CVD, a natural diamond seed is infused with gases resulting in pure diamonds. Whereas the HPHT method uses molten metal which results in chemical impurities.

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Lab grown CVD diamonds and natural diamonds are rated 10 on Mohs scale of hardness whereas HPHT diamonds are 9.75.

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