The Gemological Properties of the De Beers Gem-Quality Synthetic Diamonds

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An Update on Color in Gems. Part 1: Introduction and Colors Caused by Dispersed Metal Ions

This three-part series of articles reviews our current understanding of gemstone coloration.

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The Occurrence and Gemological Properties of Wessels Mine Sugilite

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Gemstone Durability: Design to Display

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A New Gem Material from Greenland: Iridescent Orthoamphibole

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"Modern" Jewelry: Retro to Abstract

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Contemporary Intarsia: The Medvedev Approach to Gem Inlay

The techniques of this precision inlay style are explained.

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Art Nouveau: Jewels and Jewelers

This article discusses the origins of Art Nouveau and outlines the distinctive interpretations and contributions made by significant Art Nouveau jewelers.

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The Gemological Properties of the Sumitomo Gem-Quality Synthetic Yellow Diamonds

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Fall 1986 G&G Lab Notes

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Carbon Dioxide Fluid Inclusions as Proof of Natural-Colored Corundum

An important clue in identifying natural-colored corundum is the presence of carbon dioxide fluid inclusions.

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A Simple Procedure to Separate Natural from Synthetic Amethyst on the Basis of Twinning

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Summer 1986 G&G Lab Notes

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An Examination of Four Important Gems

Several famous and historical gemstones in the Smithsonian's collection are examined and reported on.

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The Elahera Gem Field in Central Sri Lanka

The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.

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Coscuez 矿:哥伦比亚祖母绿的主要产地 (英语)

The Coscuez mine, one of a number in Colombia, is rapidly gaining significance as a major source of fine emeralds.

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Gemstone Carving in China: Winds of Change

Chinese master carvers have produced some of the world's most sophisticated gemstone carvings.

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A Survey of the Gemstone Resources of China

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The Pearl in the Chicken: Pearl Recipes in Papyrus Holmiensis

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Amethystine Chalcedony

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