News & Articles

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How Do I Know if the Fancy Melee in My Jewellery is Natural Diamond?

Find out 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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A small house, left, and a treehouse, right, are lit up against a star-filled sky.
GIA’s Knowledge Sessions: A New Way to Share Gemmological Information

GIA Knowledge Sessions cover a variety of gemmological topics and provide an opportunity for researchers, retailers, designers and other jewellery lovers to learn in a friendly, more casual format.

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A notebook, pen, mobile phone with compass app and a digital camera sit on top of a map.
The Stories Behind the Photos: A Gigantic Aquamarine and ‘Gaudy’ Nature

Gemmological photojournalist Robert Weldon shares the stories behind some of his favourite photos.

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The symbol of medicine, the caduceus (wings on each side of the top of a staff with two snakes intertwined around it) stabbing thru the coronavirus. A garnet sits at the top of the staff.
Jeweller Creates ‘Medal of Honour’ Brooch to Recognise Coronavirus Healthcare Fighters

GIA graduate creates a commemorative brooch to recognise healthcare workers battling the coronavirus.

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G&G Announces Most Valuable Article Awards

G&G announces the winners of the Dr Edward J. Gübelin Most Valuable Article Awards for 2019.

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What Country Do My Diamonds and Other Gemstones Come From?

Distinguished Research Fellow Dr James Shigley shares information on how GIA determines coloured stone origin and the mysteries of diamond origin.

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