初步检测表明，这种高透明度的全新合成钻石材料不是通过 CVD 或传统的高温高压合成方法获得的。

在南非和博茨瓦纳开设的 GIA 少年宝石学家课程让学生初步了解宝石学、矿物学和地质学。

L-Box™ 可用来比较两颗或多颗钻石的外观，如果配备一个相机还能用来在物体移动时捕捉一系列照片。 将这些图像结合起来，可以形成一部高分辨率或 3D 电影。

The current production of cultured pearls from the black-lipped pearl oyster (Pinctada margaritifera) in the Federated States of Micronesia includes mostly beaded as well as blister and nonbead-cultured pearls in a wide array of colors.

A survey of recent advances in CVD synthetic diamond quality.

An examination of the gemological and spectroscopic properties of CVD synthetic diamonds from Gemesis Corp.

《宝石与宝石学》(G&G) 期刊宣布 2019 年 Edward J. Gübelin（爱德华•J.古柏林）博士最具价值文章奖得主。

详细介绍了在这个新发现的矿床开采蓝宝石及其贸易形势，包括对该地区的地质和考察期间观察的样本进行的描述。

A classic two-circle reflecting goniometer was used to measure inter-facet angles on five faceted diamonds that included round brilliants and fancy shapes.

探究硬玉和绿辉石的区别，以及 GIA 关于界定这些宝石的现行政策。

Since the 1970s, Brazil has been a consistent source of emerald.

Dye treatments in yellow or “golden” cultured pearls have improved to the point that some samples show little surface evidence.

A presentation of parameters used to support GIA's symmetry grading system.

Twenty-six peridot samples from the Esquel pallasite meteorite and 27 samples from 10 terrestrial sources were studied by laser ablation.

对一组带有非比寻常的亮紫不透明色和强烈游彩的蛋白石进行检验

Opals with an unusual purple bodycolor and strong play-of-color have recently appeared in the market.

对正在进行的红色长石及其在世界各地的来源的研究，以及各种颜色处理过程的检测的汇编。