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Adventures of a GIA Field Gemologist: Vincent Pardieu

As the world’s foremost gemological authority, GIA has a network of field gemologists who cover every corner of the globe. Vincent Pardieu, GIA’s Supervisor of Field Gemology in Thailand, is living proof that boundless curiosity can provide many forms of enrichment.

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GIA Named One of World’s Most Ethical Companies

GIA is delighted to announce it has been recognized by the international think tank Ethisphere® Institute as one of the 2013 World’s Most Ethical (WME) Companies!

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Caring Tips and Fun Facts for April’s Birthstone: Diamond

April babies are lucky enough to have the most celebrated gemstone on Earth for a birthstone. So brilliant they were once thought to be fallen stars, diamonds are considered the hardest natural substance.

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Diamond Carat: A Measurement of Diamond Weight

When buying a diamond, understanding the measurement of how much it weighs is critical.

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Diamond Cut: Crafting a Diamond’s Finish

A diamond’s cut and its shape are often confused, but we’re here to help! A diamond’s shape refers to its outline when viewed face up. A diamond’s cut refers to its facet arrangement.

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