GIA 于 10 月 1 日推出更新版实验室培育钻石服务
GIA will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1
GIA 于 10 月 1 日推出更新版实验室培育钻石服务
GIA will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1
How-To Guide: Testing Diamonds and Gems using UV Light
GIA developed this guide so retailers can use fluorescence tests to help identify gems right in their own stores.
Two Exciting Panels Featured at AGS x GIA Converge
Industry leaders and some of GIA’s most experienced gemological experts will share their expertise and insights with participants at Converge.
Two Exciting Panels Featured at AGS x GIA Converge
Industry leaders and some of GIA’s most experienced gemological experts will share their expertise and insights with participants at Converge
GIA Evaluates Historic Diamonds in Christie’s Magnificent Jewels Auction
GIA has evaluated more than 30 rare and historically significant jewels ahead of Christie’s Magnificent Jewels auction, taking place on June 17 in New York.
Eighth Annual Gianmaria Buccellati Foundation Award Winner
A graduate of GIA’s Jewelry Design program in London is the recipient of the 2024 Gianmaria Buccellati Foundation Award.
Wearable Art Jewelry Supporting Families in Guatemala
Chick Boss, a small jewelry business based in Guatemala, gives back to the community.
Gems Keep Giving
The nonprofit organization Gems Keep Giving aims to improve global small-scale mining and gem-cutting communities.
Rare Faceted Väyrynenite
Uniquely saturated examples of the collector stone were on display at GJX.
Quarterly Crystal: Fluorite in Quartz from China
A large transparent colorless quartz crystal from the Yaogangxian mine plays host to numerous fluorite inclusions.
Paraíba Tourmaline Melee: An Entry-Level Market Perspective
A look at Paraíba tourmaline melee, which offers a more accessible price point for consumers.
Lepidolite in Copper-Bearing Tourmaline
A prismatic colorless lepidolite crystal is observed in a copper-bearing tourmaline.
Gem-Quality Spinel from Southern Malawi
Parcels of rough spinel recently mined in Malawi were offered at the AGTA show.
Evil Eye in a Flux-Healed Mong Hsu Ruby
The mirror reflection of a flux-healed fissure from a step pavilion facet in a Mong Hsu ruby creates an interesting inclusion scene.
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