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Six people sit on chairs on a stage in front of an audience.
Article
GIA JCK 2019 Panel: Consumers Care Where Their Jewelry Comes From

Consumers want to know that the components of their jewelry – gemstones, diamonds and precious metals – are responsibly sourced.

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Reinvesting in Cartagena: Jewelry School of the Caribbean

A Colombian jeweler operates a nonprofit organization that teaches at-risk youth the art of jewelry making.

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Natural diamond with CVD synthetic diamond overgrowth
CVD Layer Grown on Natural Diamond

A composite of synthetically grown and natural diamond was recently identified by the Carlsbad laboratory.

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552.7 ct Yellow Diamond from the Diavik Mine
The Largest Diamond Ever Discovered in North America

GIA examines a 552.7 ct diamond from the Diavik mine in Canada.

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People meet and mingle at the entrance to the JCK Show.
Article
Headwinds Slow 2019 Vegas Business, Lab-grown Diamonds Proliferate

Decent demand for finished jewelry, but less for loose gems. Plus: Lab-grown diamonds and responsible, sustainable business practices.

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A wide choker-style necklace of a row of emeralds with rows of diamonds above and below the emeralds.
Article
Spring 2019 Auctions: Premium Prices for Historic Pieces

Gemstones and jewels with historical provenance are bringing the best prices at the spring 2019 auctions.

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GIA Website Privacy Notice

GIA Website Privacy Notice

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Article
Diamond Fun Facts

Learn more about one of the Earth’s most fascinating creations, including some that became the most famous.

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Article
Diamond Cut: The Wow Factor

Learn the basics of the GIA Cut Grading System for round brilliant cut diamonds to help pick out your perfect diamond.

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Fancy Vivid yellow diamond
Very Large Irradiated Yellow Diamond

A very large diamond with a Fancy Vivid yellow color was identified as artificially irradiated.

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