Adventures in Yakutia: On the Track of the Diamonds

From the Summer 2013 issue of G&G, a brief overview and commentary on the article featured in Lapis, Vol. 38, No. 4.

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Determining the Geographical Origins of Natural Emeralds Through Nondestructive Chemical Fingerprinting

From the Summer 2013 issue of G&G, a brief overview and commentary on the article featured in The Journal of Gemmology, Vol. 33, No. 1-4

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EOSFancy: Automatic Bruting of Fancy Shapes

From the Summer 2013 issue of G&G, a brief overview and commentary on the article featured in De Belgische Diamantnijverheid, Vol. 83, No. 1.

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Montana Moss Agate: Collectible Chalcedony from the Yellowstone River

From the Summer 2013 issue of G&G, a brief overview and commentary on the article featured in Gem, Vol. 43, No. 4

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The Yellow Color Center and Trapped Electrons in Beryl

From the Summer 2013 issue of G&G, a brief overview and commentary on the article featured in The Canadian Mineralogist, Vol. 51, No. 1

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Wittichenite from the Cattle Grid Pit, Mount Gunson Mine, South Australia

From the Summer 2013 issue of G&G, a brief overview and commentary on the article featured in The Mineralogical Record, Vol. 44.

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实验室培育钻石工作坊

Laboratory-Grown Diamond Seminar/Workshop

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香港校友会分会

GIA 香港校友会分会的相关信息。

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Gemological Institute Of America, Inc.(美国宝石研究院股份有限公司)附属实体

附属实体

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版权和商标

版权和商标

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GIA 网站隐私声明

GIA 网站隐私声明

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GIA 报告结果 API

GIA 报告结果 API 将多款应用程序与 GIA 数据库集成,用于验证分级信息,检索 PDF 版 GIA 报告、图像以及其他 GIA 报告相关资源。此服务适用于 GIA 报告核对中的所有报告。

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使命、管理与影响

GIA 的使命是确保公众的信任。研究院领导层包括理事会、管理人员、全球鉴定所及校区总监。

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使命、管理与影响

GIA 的使命是确保公众的信任。研究院领导层包括理事会、管理人员、全球鉴定所及校区总监。

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Letters: More on Orange Luminescence in Corundum

Additional scientific details are provided to better understand orange luminescence in sapphire.

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Summer 2026 G&G Publication Information

This document provides the publication information for Gems & Gemology

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Spring 2026 G&G Publication Information

This document provides the publication information for Gems & Gemology

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A Purpose Shaped by History, Renewed for the Future

An overview of the Spring 2026 Gems & Gemology content.

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Synthetic Rock Crystal Quartz Cluster with Natural-Looking Inclusions

A synthetic quartz crystal cluster is easily mistaken as a natural specimen.

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A “Galaxy” within a Diamond

Tiny crystal and particle cloud inclusions resemble a galaxy in a 2.01 ct diamond.

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