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Parisite inclusion in emerald.
Inclusions in Natural, Synthetic and Treated Emerald

Provides a visual guide to the internal features of natural, synthetic and treated emeralds.

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

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

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

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

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Emeralds from the Ural Mountains, USSR
Emeralds from the Ural Mountains, USSR

Emeralds are again being mined in the historic district of the Ural Mountains. Physical, chemical, spectroscopic and microscopic characteristics of stones from the recent production are presented and compared with data on older samples as well as those reported in the literature.

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The Biron Hydrothermal Synthetic Emerald

A new synthetic emerald exhibits some characteristics that are distinctly different from other synthetic emeralds, such as gold inclusions.

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Abstracts; Summer 1991

From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.

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Emeralds from Musakashi, Zambia
Three-Phase Inclusions in Emerald and Their Impact on Origin Determination

Discusses the role of three-phase inclusions in emerald, in combination with spectroscopy and trace-element analysis, in determining geographic origin.

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Confusing, Triangular Inclusions in an Art Deco-Style Pin
Spring 1991 G&G Lab Notes

This section, from the Spring 1991 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

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Abstracts; Spring 1991

This article, from the Spring 1991 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

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The Lennix Synthetic Emerald

An examination of the gemmological properties of a French flux fusion-grown synthetic emerald.

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