A guide to capturing gem inclusion scenes using practical equipment and techniques and the appropriate image-refining software.

Inclusions create chatoyancy in a colorless phenakite cabochon.

A hexagonal boundary, usually found in natural material, is observed in a synthetic star sapphire.

A carving identified as blue chalcedony shows evidence of epoxy resin treatment.

The Bangkok lab examines near-colorless HPHT synthetic diamonds in melee sizes.

The New York lab examines three pink CVD synthetic diamonds which have received LPHT annealing treatment.

Review of Geology of Gem Deposits, Second Edition, by L.A. Groat.

跟随 GIA 实地宝石学家的脚步，在阿富汗潘杰希尔谷地开启一段真正的宝石开采冒险之旅。该地区顽强不息的居民们已勇敢抵御苏联的 10 次入侵。 观看如何在山区产地中开采祖母绿，很少有人亲眼目睹这一切。

時間、精度、費用対効果についての評価に重点が置かれるジュエリーのデザインと製造において、3Dプリントが持つ可能性は驚くべきものです。

A report summarizing the expeditions and lectures at the June 2015 pegmatite workshop in Poland, Maine.

一个代表了不同地理区域、市场和公司规模的研讨专家组对他们如何处理责任采购问题展开了讨论。

Review of Mimi Lipton's Untamed Encounters: Contemporary Jewelry from Extraordinary Gemstones.