A rough blue sapphire crystal from the Rock Creek deposit is heat treated and cut to become the largest known faceted blue Montana sapphire.

An overview of the Fall 2017 Gems & Gemology content.

Two regular G&G contributors receive awards for their work in the field of gemology.

书评：Taffin: The Jewelry of James de Givenchy（《塔凡：詹姆斯·德·纪梵希的珠宝》），作者：James Taffin de Givenchy（詹姆斯·塔凡·德·纪梵希）、Tobias Meyere（托比厄斯·迈尔）与 Hamilton South（汉密尔顿·索思）。

Alumni across the globe participate in chapter events and are out in full force to support the trade. There are a variety of ways you can join them.

一对校友夫妇受到母亲的启发，联手打造了一件美丽的珠宝，共同谱写出璀璨的人生。

A Brazilian quartz with unusual color zoning caused by variable iron content is examined.

Nineteen sapphires of various colors, reportedly from sources in northern Nigeria, are studied in GIA’s Tokyo laboratory.

Gemological testing and advanced analyses of a pink stone reveal unexpected results.

《宝石与宝石学》(Gems & Gemology) 2017 年秋季刊摘要。

A specimen seen in the Carlsbad lab for an updated diamond grading report does not match the previous documentation.

零售珠宝和手表的销售额都超过去年，但工资增长落后，限制了用于消费品的可支配收入。

A market report from the September Hong Kong show, including the Argyle tender, synthetic diamonds and colored gemstones.

不要单凭颜色来判断宝石。很多线索可以帮助您识别颜色相似的宝石。

这位在历史悠久的意大利珠宝精品店中长大的年轻设计师在曼谷创建了自己的品牌。

Young designer who grew up as part of an historic Italian jewelry boutique creates her own brand, company in Bangkok.

了解此次特殊的 GIA 卡尔斯巴德展览所展出的宝石如何用于打造华丽的印度珠宝。

了解米粒钻在珠宝设计中的多重作用，以及如何利用 GIA 质量保证基准设计和制作持久耐用的珠宝。

人造钻石到底是什么？比较人造钻石和天然钻石，并了解您应该知道的知识。