Copper in Indonesian Chalcedony
Enormous South Sea Cultured Pearl with Filled and Partially Hollow Structure
Examination of a gigantic South Sea bead cultured pearl reveals an intriguing internal structure.
Aquamarine with Fluorite Inclusions
Rock Crystal Quartz Skull
Rose-Shaped Cloud Inclusion in Diamond
CVD Laboratory-Grown Gem Diamonds from Plasmability
Fancy Vivid Yellow HPHT-Grown Diamonds
Irreversible Photochromism in Synthetic Sapphire
CVD-Grown Diamond with an Unusual Blue Band
Checkered Pattern on Diamond
Assembled Bead Cultured Half-Pearl
Investigation in the Carlsbad laboratory reveals a pearl submission is not mabe as initially believed.
Wearable Art Jewelry Supporting Families in Guatemala
New Nigerian Green Beryl Find
New Deposit of Pezzottaite from Madagascar
A highly saturated purplish pink to red pezzottaite from a new deposit in Madagascar is encountered in Tucson and tested by GIA researchers.
“Enhydro” Amethyst from Morocco
Eighth Annual Gianmaria Buccellati Foundation Award Winner
“Bubble Obsidian” from Armenia
Heated Corundum, the Remarkable Winston Red, and an Extraordinary Renaissance Jewel
Spiral Patterns on a Non-Nacreous Pearl
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