Rock Crystal Quartz Skull
Precious Opal from Pedro II, Brazil
Cat's-Eye Demantoid and Brown Andradite with Horsetail Inclusions
The examination of two unusual garnets results in identifications issued for the first time in GIA's colored stone report records.
An Economic Review of the Past Decade in Diamonds
“Sugar Plum” in Titanium-Diffused Blue Sapphire
GILC 2016
Evil Eye in a Flux-Healed Mong Hsu Ruby
Gem Localities and Formation
Checkered Pattern on Diamond
Bicolor Double-Eye Tourmaline
Spray of Columbite Crystals in Topaz
