HPHT/CVD
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Welcome to Hydray, buy HPHT/CVD laboratory grown diamonds
2013-9-12 · color and transparency of these materials have been investigated. In November 2010 Gemesis Corp., a well-known manufacturer of gem-quality HPHT synthetic dia-monds, announced plans to market colorless and near-colorless CVD synthetics (Graff, 2010). Since March 2012, the company has sold mounted and loose CVD synthetic diamonds (e.g., figure 1).
ratories, on all CVD synthetic diamonds examined from 2003 through June 2016; additionally, we cite one CVD synthetic submitted after that date—a 5.19 ct "near-colorless" sample. Of this sample set, 60% were in the colorless to near-colorless to very light brown range .
ratories, on all CVD synthetic diamonds examined from 2003 through June 2016; additionally, we cite one CVD synthetic submitted after that date—a 5.19 ct "near-colorless" sample. Of this sample set, 60% were in the colorless to near-colorless to very light brown range .
2012-6-1 · Viewing in crossed polarizers also distinguishes CVD from HPHT synthetics, which tend to display extremely low levels of strain (right). Shown in these photos are a 0.53 ct G-color CVD synthetic diamond (left), a 2.51 ct H-color CVD synthetic (center) .
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2012-6-1 · Viewing in crossed polarizers also distinguishes CVD from HPHT synthetics, which tend to display extremely low levels of strain (right). Shown in these photos are a 0.53 ct G-color CVD synthetic diamond (left), a 2.51 ct H-color CVD synthetic (center) .
Rough Uncut CVD/HPHT Diamond 1. Size: 0.001-1ct, 1mm-6mm 2. Clarity: S1, S2, VS, VVS 3. Color: D, E, F, G, H 4. Type: CVD/HPHT laboratory grown diamond 5.
Rough Uncut CVD/HPHT Diamond 1. Size: 0.001-1ct, 1mm-6mm 2. Clarity: S1, S2, VS, VVS 3. Color: D, E, F, G, H 4. Type: CVD/HPHT laboratory grown diamond 5.
Diamond Cvd/ Diamonds Tianyu Gems Synthetic Diamond 1.4 To 2.6MM D E F Color VS/SI Clarity CVD/ HPHT Polished Loose Melee White Round Cut Diamonds Ready to Ship $158.00 / Carat
2013-9-12 · color and transparency of these materials have been investigated. In November 2010 Gemesis Corp., a well-known manufacturer of gem-quality HPHT synthetic dia-monds, announced plans to market colorless and near-colorless CVD synthetics (Graff, 2010). Since March 2012, the company has sold mounted and loose CVD synthetic diamonds (e.g., figure 1).