News & Articles

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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Two blue sapphires side by side
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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Man stands at a podium in front of a room of people.
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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Three round brilliant diamonds in a row
GIA Researchers Evaluate ‘Light Performance’ and Diamond Cut

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Man stands in front of an audience giving a lecture – projection screen with image to his right.
Not All That Glitters is Gold — Sometimes it is Mozambican Rubies

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A large yellow cushion cut diamond pendant is partially framed with marquis cut diamonds and hangs from a necklace of mixed cut diamonds.
Yellow Gemstones: Can You Identify Them?

A variety of gemstones come in shades of yellow, from diamonds to citrine to garnets.

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