Two-phase inclusions are investigated in alluvial sapphires from deposits in Montana.

Two new deposits of Cu-bearing tourmaline have been found in Paraíba State, Brazil, not far from the original source at Mina da Batalha.

Primary and secondary deposits in the Tan Huong–Truc Lau area of northern Vietnam’s Yen Bai Province have supplied rubies and some sapphires for more than a decade.

Since 2002, tsavorite and other grossular varieties have been recovered from a primary deposit at Itrafo, a village in the Andrembesoa area of central Madagascar.

Over the last decade, Pakistan has developed into an important source for many gem materials. A number of localities have been identified for emeralds in particular.

Investigating a set of six antique brooches set with diamonds and light blue cabochons.

GIA researchers explore the differences between whole, blister, and shell blister pearls in this study using 33 samples from Pinctada maxima mollusks recovered off Broome, Australia.

合成宝石材料是在实验室中制成的一种材料，但却具有与其相对应的天然矿物的相同的化学、光学和物理特性，虽然在某些情况下，如合成土耳其石和合成蛋白石，可能会有其他化合物的存在。

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加利福尼亚州卡尔斯巴德 – 2019 年 3 月 28 日 – 4 月 30 日，GIA 将推出 GIA 钻石原产地证书服务，用以确认成品钻石的产地。

2026 年 2 月 6 日，GIA美国宝石研究院与 Gianmaria Buccellati Foundation联合颁发了第九届年度 Gianmaria Buccellati Foundation Award for Excellence in Jewelry Design，获奖者为 GIA 卡尔斯巴德校区的毕业生 Catherine “Cathy” Aulick。

11 月初，在加州卡尔斯巴德总部举行的 GIA 理事会会议上，研究院授予 Susan M. Jacques最高荣誉 — Richard T. Liddicoat杰出成就奖。

GIA 将于 2026 年 1 月 1 日推出最新设计的彩色宝石鉴定报告和新的服务。

GIA will launch revised evaluation services for D-to-Z laboratory-grown diamonds on October 1