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10.08 ct HPHT synthetic diamond with color equivalent to Fancy Deep blue

Blue HPHT Synthetic Diamond Over 10 Carats

Terry Poon and Wuyi Wang, January 27, 2017

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

Billie “Pui Lai” Law and Wuyi Wang, January 27, 2017

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

Surjit Dillon Wong and Joyce WingYan Ho, October 17, 2013

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

John M. King and Wuyi Wang, GIA, July 1, 2013

A report on a 1,138 ct rough diamond, possibly the largest ever examined by GIA.

Large Pinkish Brown CVD Synthetic Diamond

Troy Ardon and Sally Eaton-Magaña, October 17, 2013

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.

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