在 2008 年底和 2009 年初对拜林的重要红宝石和蓝宝石矿床进行的两次考察的总结。 包括看一看原石和刻面样本。

与来自中亚其他矿床的红宝石和粉红色蓝宝石进行初步检查和比较。

All corals within the Stylasteridae family (including the Stylaster genus) are listed in Appendix II of CITES.

介绍几种经玻璃处理的红宝石，及对这些经玻璃处理的红宝石进行实验研究，验证这些宝石为玻璃粘结物。

探讨激光拉曼光谱对珍珠内物质鉴定以及确定其生物矿物生长方向的可行性。

Several transparent, faceted, blue to blue-green copper-bearing tourmalines containing growth tubes and cracks surrounded by sleeves of pink color were examined for this report.

描述了具有天然铍元素的粉红色蓝宝石和具有不确定铍源的​​黄色蓝宝石

一颗非同寻常的珍珠：我们看到发来的图片之后，就知道这显然是一项有趣的工作。

据报道，一批产自纳米比亚的罕见硼铝石最近被送至 GIA 曼谷鉴定所进行研究。 本文报道了这组藏品的五个样本的初步检测情况及其照片。

根据化学分析检查长石的地理起源，并反驳墨西哥矿材被运送至中国进行处理并作为中国矿材出售这一指控。 对产自墨西哥、蒙古和美国的样本进行分析。

散发难闻气味的珍珠

据报道在莫桑比克北部新发现的魅力红宝石开始出现在泰国的宝石市场。 这些宝石类似于坦桑尼亚 Winza（汶沙）矿区的红宝石，但本项研究表明，可通过显微镜检查将它们区别开来。

虽然到目前为止，高品质的天然尖晶石无需经历大规模的处理流程，但市面上仍流通着部分经加热处理的商品。 本证书确定了经加热处理的尖晶石的识别标准。

With the use of modern tools and technology, this article sheds light on the history and provenance of both the French Blue and the Hope diamonds.

Purplish Pink Spinel from Tajikistan: Before and After Cutting

New data are presented for demantoid from Val Malenco, Italy, as obtained by classical gemological methods.

检验次生液体内含物（也被称为“指纹”）在极高温度下的状况，及其在检测热处理时发挥的作用。

During the past 25 years, the corundum market has been transformed from one of medium to high-priced gems to one that encompasses nearly all price ranges.

This article describes what is known about the Wittelsbach Blue since it was first reported in 1666, and the gemological information released to date on this diamond.

This article discusses the history and ongoing development of GIA's color grading system, and explains how its laboratory applies it.