
The Geographic Origin Dilemma
An overview of the geographic origin complexities facing the gem and jewelry industry today.

Geographic Origin Determination of Ruby (英语)
The world ruby market has undergone dramatic change in recent years, especially with the development of ruby mining in Mozambique. This contribution outlines GIA’s methods and criteria for establishing the geographic origin of ruby.

Geographic Origin Determination of Paraíba Tourmaline
Copper-bearing gem tourmaline, known as Paraíba tourmaline after the location of its original discovery, is prized for its vivid blue to green color. This article explains GIA’s use of quantitative chemical analyses to distinguish samples from Brazil, Nigeria, and Mozambique.

A Review of Analytical Methods Used in Geographic Origin Determination of Gemstones (英语)
Geographic origin determination relies on a combination of gemological observations and advanced analytical tools. This contribution reviews the analytical methods commonly used to establish origin.

Geology of Corundum and Emerald Gem Deposits: A Review
Over the last two decades, knowledge of the formation of gem deposits has improved significantly. This article reviews the state of our knowledge of the geology and genesis of gem corundum and emerald deposits.

Geographic Origin Determination of Emerald
The relative chemical diversity of emeralds from different deposits worldwide allows clear origin determination in most cases. This contribution explains the criteria used by GIA to make geographic origin conclusions for emeralds.

《宝石与宝石学》(Gems & Gemology) 2019 年冬季刊:地理原产地特刊


GIA 首席执行官 Susan Jacques(苏珊·雅克)获颁 Jewelers Vigilance Committee(珠宝商警戒委员会)荣誉奖项
加利福尼亚州卡尔斯巴德 - 2020 年 1 月 16 日,Jewelers Vigilance Committee(珠宝商警戒委员会,JVC)在纽约市举行的年会及午宴上,为 GIA 总裁兼首席执行官 Susan M. Jacques(苏珊·M.·雅克)颁发 Stanley Schechter Award(斯坦利·谢克特奖)。

GIA 首席执行官 Susan Jacques(苏珊·雅克)获颁 Jewelers Vigilance Committee(珠宝商警戒委员会)荣誉奖项
加利福尼亚州卡尔斯巴德 - 2020 年 1 月 16 日,Jewelers Vigilance Committee(珠宝商警戒委员会,JVC)在纽约市举行的年会及午宴上,为 GIA 总裁兼首席执行官 Susan M. Jacques(苏珊·M.·雅克)颁发 Stanley Schechter Award(斯坦利·谢克特奖)。









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