A report on the chemical and mineralogical analysis of samples’ solid inclusions.

“奥德赛日光石”系列的最后一部分介绍了 Sunstone Butte 矿（拥有大量壮观的绿色和双色宝石的新场址）。

我们光顾 Dust Devil 矿区继续我们的“日光石奇幻历险”系列之旅，许多获誉良多的刻面宝石和雕刻品均产于此地。

Shows the conversion of limonitic residues to hematite in surface-reaching inclusions, a practical indication of heat-treated corundum.

By Dorothy McFerrin, publ. by the McFerrin Foundation, College Station, Texas, 2013, US $125

The Fall 2013 issue introduces a new G&G article category—the field report—as well as online features such as videos and slideshows.

The uncommon occurrence of epigenetic malachite, as found in this quartz, can result in vivid green color.

Report on the analysis of an unusually large CVD synthetic diamond, unique in that its Faint to Light pinkish brown color doesn’t appear to be the result of post-growth treatment.

Examination of an imitation rainbow moonstone assemblage containing plastic-coated gypsum.

An unusually large cultured pearl was filled with multiple cultured pearls, perhaps after the emergence of an original single-bead nucleus.

Observing a water drop’s interaction with opal, as well as refractive index, can confirm a specimen’s hydrophane nature with less risk of breakage than total immersion.

A fingerprint pattern, possibly left by human skin oils during the assembly process, is observed in natural turquoise beads.

Natural amber beads were found to have been filled with plastic and a variety of insects.

An unusual laser manufacturing remnant, possibly once used to guide a gem cutter, was left behind in a clock-like shape.

Chronicles a visit to the high desert of eastern Oregon to examine commercial sources of this natural copper-bearing feldspar.

The history and mysteries behind a treasure of jewels hidden during the 1600s, a window to the past being fully opened to the public for the first time since a chance discovery a century ago.

研究宝石学家 H. “Gio” Giovanni（H.·吉奥·吉奥瓦尼）与 GIA 卡尔斯巴德学生分享了他的创新珠宝设计技能和品牌实践。

在 GIA 卡尔斯巴德校区的演示会期间，毕业生为在校学生提供职业发展建议。

2013 年 10 月，GIA 曼谷实验室对 2012 年 9 月考察期间收集的样本进行了研究。

GIA 博物馆展览“极尽奢华：Tony Duquette-Hutton Wilkinson 珠宝展览”展出了好莱坞著名设计师的珠宝设计作品。