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‘Dreams of Diamonds’ Book and Exhibition Celebrate Spectacular Gems

Explore the wondrous world of diamonds in this large book (2 stone 5 lbs and three feet wide when open) and gallery from a past exhibition – that reveals their detail and beauty.

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Rough diamond, yellow in color
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Diamond Research Gives Clues to the Formation of the Continents

Mineral inclusions trapped in diamonds reveal the continents’ construction – and help GIA researchers date diamonds.

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CVD, HPHT and Natural Diamonds
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Is There a Difference Between Natural and Laboratory-Grown Diamonds?

Learn about the differences – and similarities – between natural and laboratory-grown diamonds, and how GIA’s researchers and grading laboratories can tell the difference

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Mining Diamonds in the Canadian Arctic: The Diavik Mine

Located near the Arctic Circle, Diavik is one of the world’s richest diamond deposits and a leader in sustainable mining.

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Fluorescence image of Aurora Butterfly of Peace
An Introduction to Photoluminescence Spectroscopy for Diamond and Its Applications in Gemmology

Presents the underlying physics and methodology of this analytical technique, which has become an essential tool in identifying treated and synthetic diamonds.

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299.35 ct and 112.61 ct diamond rough
Letšeng’s Unique Diamond Proposition

Explores the history, geology and current production of this unique source of large diamonds.

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Field Report: Diamond Mining in Minas Gerais, Brazil

A first-person account of diamond mining in Minas Gerais, Brazil, which has been a source since the early 1700s.

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HPHT and CVD Diamond Growth Processes: Making Lab-Grown Diamonds

While more people are becoming familiar with lab-grown diamonds, many still don’t know how they are actually made. Learn about the two diamond growth processes, HPHT and CVD.

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Three pieces of labradorite with yellow, blue and green flashes of color.
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Optical Effects of Phenomenal Cabochons

Learn how the structure, inclusions and properties of some gemstones interact with light to create unusual visual effects.

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Venetian mask cloud inclusion
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Diamonds Under the Scope

Peer through a microscope and discover another world of gems. Inclusions reveal the gem’s journey from deep within the earth to its surface.

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