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GIA Researchers Reveal the Secrets of Diamond-in-a-Diamond Mystery

Stephen Morisseau, January 13, 2020

GIA researchers in New York recently had the opportunity to examine one of the most interesting and unique diamond crystals ever found.

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.

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.

Mixing of Natural Diamonds with HPHT Synthetic Melee

Terry Poon, Carmen Lo, and Billie Law, January 27, 2017

Screening reveals a surprise within a batch of synthetic diamond melee.