News & Articles

This issue features a unique glimpse into the overwhelming majority of diamonds submitted to GIA: those on the D-to-Z color scale.
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Recently, staff in GIA’s New York laboratory were astounded by two natural pearl finds on opposite coasts – one in Baja California, Mexico and one in Long Island, New York. Each find was outstanding and worthy of exploration.
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Learn about how GIA is addressing industry concerns over undisclosed laboratory-grown and simulated fancy melee being mixed in with natural fancy melee.
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GIA Knowledge Sessions cover a variety of gemological topics and provide an opportunity for researchers, retailers, designers and other jewelry lovers to learn in a friendly, more casual format.
Read MoreGemological photojournalist Robert Weldon shares the stories behind some of his favorite photos.
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