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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.
Article
Jeweller Creates ‘Medal of Honour’ Brooch to Recognise Coronavirus Healthcare Fighters

GIA graduate Franco Valobra creates a commemorative brooch to recognise healthcare workers on the front line of the coronavirus battle for survival.

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Two blue sapphires side by side
Article
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.
Article
What Country Do My Diamonds and Other Gemstones Come From?

Dr James Shigley shares how GIA determines coloured stone origin and the mysteries of diamond origin.

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Three round brilliant diamonds in a row
Article
GIA Researchers Evaluate ‘Light Performance’ and Diamond Cut

The phrase “light performance” gets a lot of loose use in the diamond trade, but what does it mean when someone is actually looking at a diamond?

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

Learn about Mozambican rubies, including their mining history, characteristics and market demand.

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Three men at a conference table.
Article
A Look Back — and Forward — After 40 Years in the Gem and Jewellery Industry

Russell Shor reflects on the people, gems and stories he’s encountered as he’s covered the industry over the years.

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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.
Article
Yellow Gemstones: Can You Identify Them?

Don’t judge a yellow gem by its colour alone. A variety of gemstones also come in shades of yellow, from diamonds to citrine to garnets.

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Man stands in front a GIA banner that features gemstones.
Article
The ABCs of Pearls Reveal Fascinating Aspects of Gems from the Deep

“The A-Z of Pearls”, with at least one pearl-related subject for each letter of the alphabet, was presented in Thailand recently.

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Article
The Real Gemmology of Ethiopian Opals in ‘Uncut Gems’

This article takes a look at the rough opal that plays a major role in the Adam Sandler film “Uncut Gems”. What is the real gemmology of opals?

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A piece of diamond rough with green body color and triangular etchings on the surface.
Article
GIA Researchers Reveal the Secrets of Diamond-in-a-Diamond Mystery

GIA researchers in New York recently had the opportunity to examine one of the most interesting and unique diamond crystals ever found.

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