A cracked apatite specimen reveals hidden treasure.

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

Examines a form of asterism comprising two six-rayed stars, one white and one that exhibits the stone’s bodycolor. Firsthand accounts and a survey of patent documents reveal that diffusion has been used to create or enhance this optical phenomenon in synthetic and possibly natural corundum since the 1950s.

This large marble-hosted occurrence in the Pamir Mountains is a potentially productive source of corundum, including ruby with a bright red color reminiscent of “pigeon’s blood” Burmese rubies.

G&G’s new column takes a closer look at the hidden wonders found in gemstones.

评论 S.K. Samuels（S.K. 塞缪尔）的 Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present（《缅甸帝王玉和印度羊脂玉：从古至今的开采、贸易及使用》）。

Review of Collector’s Guide to the Zeolite Group, by Robert J. Lauf.

Review of I Love Those Earrings: A Popular History from Ancient to Modern, by Jane Merrill with Chris Filstrup.

《纽约州矿物收藏指南》书评。

评论 S.K. Samuels（S.K. 塞缪尔）的 Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present（《缅甸帝王玉和印度羊脂玉：从古至今的开采、贸易及使用》）。

世界钻石业不景气，正在侵蚀矿业公司的底线。 此外，还有有关中国和日本的市场报道。

3D 打印的潜能对珠宝设计和制造而言十分惊人，时间、精度和成本效益得到高度重视。

美しい宝石の採掘やカットが行われている、パキスタンの鉱山での本物の宝石採掘を、GIAフィールド宝石学者と共に冒険してください。 ヒマラヤ、カラコルム、ヒンドゥークシュ山脈がぶつかり合う、マルコ・ポーロの通った古いシルクロードの旅に、私たちと共に出かけます。

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。

The Panyu district is a leading gemstone cutting and jewelry manufacturing center for the global gem and jewelry industry. Situated near Hong Kong, it plays a key role in jewelry exports from mainland China and Hong Kong. Join GIA field gemologists on a visit to some of the companies and key locations in this gem and jewelry manufacturing powerhouse.

采用内含物分析、紫外线 — 可见光 — 近红外分光光度法、​能​量​色​散 ​X ​射​线​荧​光​光​谱​仪​和激光剥蚀电感耦合等离子体质谱仪，对刚玉附生合成红宝石进行分析。

A review of the “Maker & Muse, Women of the 20th Century Art Jewelry” exhibition at Chicago’s Driehaus Museum.

春季拍卖会再奏凯歌，以历史性销售新高完美收官。

Chinese consumers are paying more and more attention to unique colored gemstone varieties. One of those that holds great potential is chrome diopside. This article follows the GIA on-location team to hear what local industry participants have to say about it.

关于蒙大纳州菲利普斯堡附近的 Gem Mountain（宝石山）矿最近扩大蓝宝石生产的概览。