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An Important Exhibition of Seven Rare Gem Diamonds

The stories behind seven strikingly beautiful rare natural diamonds, united in an exhibit at the Smithsonian, are told here.

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Characterization and Grading of Natural-Color Pink Diamonds

Known for their great beauty and rarity, pink diamonds have long been sought after by jewelers, collectors, and consumers.

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Modeling the Appearance of the Round Brilliant Cut Diamond: An Analysis of Brilliance

A mathematical model which can analyze how appearance factors depend on proportions.

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GIA’S Symmetry Grading Boundaries for Round Brilliant Cut Diamonds

A presentation of parameters used to support GIA's symmetry grading system.

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Colored Diamonds in the Aurora Butterfly of Peace Collection
The “Type” Classification System of Diamonds and Its Importance in Gemology

Knowledge of type allows gemologists to better evaluate if a diamond might be treated or synthetic, and whether it should be sent to a laboratory for testing.

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Latest-Generation CVD-Grown Synthetic Diamonds from Apollo Diamond Inc.

High-quality CVD-grown diamonds, comparable in color and clarity to natural diamonds, can be identified using a combination of gemological and spectroscopic properties.

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Abstract Header from the 2009 issue of Gems & Gemology
Abstracts; Fall 2009

This article, from the Fall 2009 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

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RN Linares CVD
Article
CVD-Grown Synthetic Diamonds, Part 2: Properties

This article provides a brief overview of the properties of CVD-grown synthetic diamonds.

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Art Industry Diamond Grading Israel
Article
GIA Opens Laboratories in Israel and Japan

By bringing industry-leading diamond grading services directly to important gem markets, GIA is making its services more easily accessible.

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GIA Diamond Grading Report Provides Most Respected Diamond Analysis

Items of significant value typically come with important documentation. But what about something as valuable as a diamond?

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