The Effect of Low-Temperature Heat Treatment on Pink Sapphire

Twelve pink sapphires undergo low-temperature heat treatment and reveal a correlation with the 3232 cm-1 FTIR peak.

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Euhedral Phantom Sapphire in Sapphire

A phantom sapphire crystal within a host sapphire crystal was recently examined at GIA’s Carlsbad laboratory.

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Helical Inclusion in Colombian Emerald

A 7.54 ct natural emerald containing a 3D helical inclusion is examined by the Tokyo laboratory.

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Mexican Opal with Large Fluid Inclusion

Although opals generally contain water in their structure, fluid inclusions large enough to be resolved with the microscope are rare; those that can be seen with the unaided eye are exceedingly rare.

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校友的终身追求:寻觅珠宝独角兽

Alan Nacht(艾伦·纳希特)继承了家族遗产——Bernard Nacht & Co.,不断寻找令人难忘的珠宝。

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热带天堂:灵感源自海洋的珠宝和宝石

让这些在海中形成的珠宝带您进入梦想中的暖水海洋天堂吧!其设计灵感源自海洋生物,能让您感受到海洋的气息。

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热带天堂:灵感源自海洋的珠宝和宝石

让这些在海中形成的珠宝带您进入梦想中的暖水海洋天堂吧!其设计灵感源自海洋生物,能让您感受到海洋的气息。

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历史文献清单:来自波希米亚的红色镁铝榴石柘榴石

关于波希米亚红色镁铝榴石柘榴石的加注读物清单

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银行暂停对“无利润”钻石原石发放贷款

荷兰银行表示将不再为无法盈利的原石提供采购资金后,戴比尔斯和阿罗沙的钻石原石销量大幅下降。

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珠宝侦探:学生寻找线索,了解品质工艺、使用寿命

GIA 珠宝鉴证学研讨会教授学生成为珠宝侦探,评估珠宝设计和工程质量。

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好莱坞珠宝:令明星光彩照人的配饰和珠宝

Kazanjian Foundation(カザンジャン財団)から貸し出された「ハリウッドの宝飾品」はハリウッドのスターに関連する幾つかのジュエリーやアクセサリーを展示しています。

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莫卧儿珠宝拍卖会:阿勒萨尼珍藏系列 (Al-Thani Collection) 揽获 1.09 亿美元

佳士得的拍卖会上展出了阿勒萨尼珍藏系列珠宝,吸引了来自世界各地的收藏家。

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