Blue HPHT Synthetic Diamond Over 10 Carats
Results from GIA’s recent testing of a 10.08 ct blue HPHT synthetic diamond, the largest HPHT synthetic recorded to date.
Mixing of Natural Diamonds with HPHT Synthetic Melee
Screening reveals a surprise within a batch of synthetic diamond melee.
CVD Synthetic Diamond Over 5 Carats Identified by GIA
Results from GIA’s recent testing of a 5.19 ct CVD synthetic diamond, the largest it has examined to date.