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Three pieces of labradorite with yellow, blue and green flashes of color.
Article
Optical Effects of Phenomenal Cabochons

Learn how the structure, inclusions and properties of some gemstones interact with light to create unusual visual effects.

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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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A high-tech digitizing machine cradles the books for scanning instead of forcing them into a flat, spine-damaging position.
Article
Rare Books Project Puts Gem and Jewellery History Within Reach

More than 200 historically significant books housed in the GIA Library have been digitised and made available for free.

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A row of various shaped cut and polished pink diamonds.
Article
Why are Pink Diamonds Pink? GIA Researchers Dive Deep into their Crystal Structure

GIA researchers analysed more than 90,000 natural pink diamonds to better understand how these rare and beautiful diamonds formed and got their colour.

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Young woman works with a Raman spectroscopy machine.
Article
GIA’s First Research Intern: Genesis of a Gemmologist

GIA’s Research Internship Programme enables students to get hands-on experience of analysing gem materials, as well as receiving ongoing coaching and mentoring.

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Emerald and diamond brooch.
Article
Jewels of Hollywood: Accessories and Jewellery that Made the Stars Shine

“Jewels of Hollywood”, on loan from the Kazanjian Foundation, showcases some of the jewellery and accessories associated with Hollywood royalty.

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A wide choker-style necklace of a row of emeralds with rows of diamonds above and below the emeralds.
Article
Spring 2019 Auctions: Premium Prices for Historic Pieces

Gemstones and jewels with historical provenance are bringing the best prices at the spring 2019 auctions.

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Red spinel, Burma ruby
Article
A Case of Mistaken Identity?

Don’t judge a gem by colour alone. Many clues can help you identify gems of similar colours.

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Article
Leaf Motifs: Timeless Beauty for All Seasons of Jewellery

The humble leaf has captivated jewellery designers for centuries and they’ve transformed it into enduring pieces of beautiful jewellery.

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Three smaller cameos show the progression of craving a cameo from rough shell. They sit in sand alongside a shell with a fully carved cameo on it.
Article
Cameos: Timeless, Miniature Carvings for Jewellery Lovers

The rich history and lore of cameos make them a fascinating avenue into the world of collecting for history, mythology and jewellery buffs.

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