GIA 理事会已任命现任 GIA 首席运营官 Pritesh Patel 为该研究院的总裁兼首席执行官

GIA 理事会已任命现任 GIA 首席运营官 Pritesh Patel 为该研究院的总裁兼首席执行官

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.

A graduate of GIA’s Jewelry Design program in London is the recipient of the 2024 Gianmaria Buccellati Foundation Award.

Chick Boss, a small jewelry business based in Guatemala, gives back to the community.

The nonprofit organization Gems Keep Giving aims to improve global small-scale mining and gem-cutting communities.

Uniquely saturated examples of the collector stone were on display at GJX.

A large transparent colorless quartz crystal from the Yaogangxian mine plays host to numerous fluorite inclusions.

A look at Paraíba tourmaline melee, which offers a more accessible price point for consumers.

A prismatic colorless lepidolite crystal is observed in a copper-bearing tourmaline.

Parcels of rough spinel recently mined in Malawi were offered at the AGTA show.

The mirror reflection of a flux-healed fissure from a step pavilion facet in a Mong Hsu ruby creates an interesting inclusion scene.

Potentate Mining expands its mining operation and hosts the first Montana sapphire tender in Bangkok.

The first documented case of corundum with irreversible photochromism encountered at GIA.

Devitrified glass inclusions resembling pom-poms or sea urchins are observed in a clarity-enhanced ruby.

A look at the most popular phenomenal gems exhibited at the 2025 Tucson gem shows.

A remarkable skull carved from quartz crystals mined in Arkansas is submitted to the Carlsbad laboratory.

Eye-visible kyanite inclusions give this 7.83 ct quartz its light blue color.

The Bangkok laboratory studies 35 loose non-nacreous pearls from a wide range of marine mollusk species.

A highly saturated purplish pink to red pezzottaite from a new deposit in Madagascar is encountered in Tucson and tested by GIA researchers.