Eighth Annual Gianmaria Buccellati Foundation Award Winner
Wearable Art Jewelry Supporting Families in Guatemala
Gems Keep Giving
Quarterly Crystal: Fluorite in Quartz from China
Rare Faceted Väyrynenite
Uniquely saturated examples of the collector stone were on display at GJX.
Lepidolite in Copper-Bearing Tourmaline
Paraíba Tourmaline Melee: An Entry-Level Market Perspective
Gem-Quality Spinel from Southern Malawi
Evil Eye in a Flux-Healed Mong Hsu Ruby
Update on Montana’s Rock Creek Sapphire
Devitrified Glass “Pom-Poms” in Ruby
Irreversible Photochromism in Synthetic Sapphire
Kyanite in Quartz
Rock Crystal Quartz Skull
Phenomenal Gems
A look at the most popular phenomenal gems exhibited at the 2025 Tucson gem shows.
Natural Non-Nacreous Pearls from Various Marine Mollusks
The Bangkok laboratory studies 35 loose non-nacreous pearls from a wide range of marine mollusk species.
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.
Spiral Patterns on a Non-Nacreous Pearl
“Bubble Obsidian” from Armenia
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.
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