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Nephrite Jade from Val Malenco, Italy: Review and Update

Analysis of 21 rough and gem-quality samples offers an update on the composition and properties of this pale green gem from the Italian Alps.

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Fall 2015 G&G: Trapiche Emeralds, Synthetic Diamonds and a Large Diamond Source

G&G Brief presents an overview of the content of the Fall 2015 issue of Gems & Gemology.

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Jadeite boulder from Itoigawa, Japan
Japanese Jadeite Tables

Examines the sources, color, texture, and chemical composition of jadeite from Japanese deposits.

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Jadeite boulder from Itoigawa, Japan
Japanese Jadeite: History, Characteristics, and Comparison with Other Sources

Examines the sources, color, texture, and chemical composition of jadeite from Japanese deposits.

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Multi-colored gems are superimposed on an image of glacier peaks.
Article
Gems and Minerals from the Subarctic

Circumnavigate the boreal reaches of the globe to explore gems from polar regions.

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A large ruby crystal in calcite with three faceted rubies in front.
Article
Economists See Bright Holiday Season

National Retail Federation predicts a strong increase in holiday sales; U.S. ban on Myanmar ruby, jade lifted; diamond market report.

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Worker attaching wax forms
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Shenzhen: The Frontier of China’s Gem and Jewelry Industry

All jewelry professionals are familiar with the city of Shenzhen, a global jewelry manufacturing center and a leader of China’s fast-growing gem and jewelry industry. Join the GIA team as we tour the city and discover more about its leading jewelry brands.

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Jadeite jade and hydrogrossular garnet bangles.
A Jadeite Bangle Simulant: Hydrogrossular Garnet

Bangles submitted for identification are found to be not jadeite jade, but hydrogrossular garnet, an unusual choice for this form.

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Burmese Jade: The Inscrutable Gem
Burmese Jade: The Inscrutable Gem

The jadeite mines of Upper Burma (now Myanmar) occupy a privileged place in the world of gems, as they are the principal source of top-grade material.

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Jadeite of Guatemala: A Contemporary View

Many deposits of jadeite have been found in Guatemala during the last two decades.

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