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.
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.
Enormous South Sea Cultured Pearl Filled with Cultured Pearls
An unusually large cultured pearl was filled with multiple cultured pearls, perhaps after the emergence of an original single-bead nucleus.
Very Large Rough Diamond
A report on a 1,138 ct rough diamond, possibly the largest ever examined by GIA.
Large Pinkish Brown CVD Synthetic Diamond
Report on the analysis of an unusually large CVD synthetic diamond, unique in that its Faint to Light pinkish brown colour doesn’t appear to be the result of post-growth treatment.