This article illustrates the various features in filled diamonds and explores the best techniques for examining them.

Australia’s Argyle mine has set records for volume since its establishment in 1983, and is additionally noted for its rare pink diamonds.

The GIA diamond cut grading system described here includes the components of brightness, fire, scintillation, polish, and symmetry, as well as weight and durability concerns, into a single overall grade for cut quality for standard round brilliants.

A new chart, supplementing the one published in the Winter 1995 issue of Gems & Gemology, summarizes the features of both as-grown (“non-modified”) and treated (“modified”) synthetic diamonds currently in the gem market (that is, those grown by the high pressure/high temperature technique).

This article reviews the GIA Laboratory’s history of reporting on certain types of graining which are often the only characteristics present in large, high-clarity, high-color diamonds.

High-quality CVD-grown diamonds, comparable in color and clarity to natural diamonds, can be identified using a combination of gemological and spectroscopic properties.

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

在拉斯维加斯举办的 GIA 2009 年小型珠宝招聘会上，Honora 的 CEO Joel Schechter 与我们分享了他父亲 Stanley Schechter 教他选拔模范雇员身上要具备的重要特质 — 忠诚、诚实，尊重他人和关注细节 。

来自美国珠宝设计协会 (AJDC) 的成员在参观卡尔斯巴德校园时与 GIA 的学生分享了建议。

Ben Bridge 珠宝的销售和电子商务副总裁 Mary Todd-McGinnis 在 2009 年的卡尔斯巴德招聘会上分享了她在宝石行业的职业生涯，阐述了人们购买珠宝的方向趋势和文化影响。

加利福尼亚州帕萨迪纳蒂芙尼公司 (Tiffany & Co.) 销售经理 Kara Erickson 与参加 2009 年卡尔斯巴德招聘会的人员分享她用于打造其职业生涯的五个关键概念。

美国宝石交易协会 (AGTA) 首席执行官 Doug Hucker 向出席卡尔斯巴德 2009 年招聘会的与会者提出一些现实的实用建议。