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Detail of pendant elements heart and palmette shows twisted wire details (probably cast) and granulation soldered on.
Article
A New Life for Revival Jewellery Styles: Archaeological, Renaissance and Egyptian

Revival jewellery is inspired by the past – and wearing it connects us to the rich history of the beginning of civilisation.

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A group of rough sapphires encircle cut sapphires.
Article
Montana Yogo Sapphires’ Unique Gemmology

A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.

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Horn shaped jewel pendant featuring emeralds, rubies, diamonds and pearls, and shows engravings in Arabic.
Article
Centuries of Opulence: Jewels of India

Learn about the journey of gemstones used to create the fabulous Indian jewellery featured in this special exhibition at GIA in Carlsbad.

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Colombian independent miners
Colombian Emerald Industry: Winds of Change

A first-hand look at Colombia’s emerald mines and the cutting and trading industry in Bogotá.

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Ruby-bearing gravel bed in Mugloto.
Update on Gemstone Mining in Northern Mozambique

Recounts an expedition to Mozambique’s important deposits of ruby, spinel and tourmaline, which have yet to be fully explored.

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El Pulpito, the landmark overlooking the Chivor mine
In Rainier’s Footsteps: Journey to the Chivor Emerald Mine

Chronicles the famed emerald source through the adventures of Peter W. Rainier, who directed the mine from 1926 to 1931 and restored its former glory.

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Jaipur, India: The Global Gem and Jewellery Power of the Pink City

Examines Jaipur’s role as a coloured stone cutting and jewellery manufacturing centre, with profiles of 17 companies and their factory, trading and retail operations.

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Husband and wife gaze happily at emerald rough found in a Colombian mine.
Article
Colombian Emerald Industry: Winds of Change

Andy Lucas, GIA’s education manager of field gemmology, researches and documents the mine to market journey of gemstones. Lucas shares the changes he observed in Colombia’s major emerald mining and cutting areas in a presentation he gave at the 2017 JCK Las Vegas show.

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Pearls, shells, and jewelry on table
Article
The Lure of American Freshwater Pearls: Revisiting the Latendresse Family

John Latendresse is known as the father of American cultured pearls. He was also a great natural pearl collector and left his family a remarkable natural pearl collection. The Latendresse family is well recognised in the American pearl industry and has long supported GIA pearl research. Come with us to revisit this family and their pearl collection.

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Handful of opal
Article
Lightning Ridge: The World Capital of Fine Black Opal

Lightning Ridge is the world capital of fine black opals, the most desired of all opals. In June 2015 a group of GIA field gemmologists visited this legendary town in New South Wales, Australia. Come with us to explore this important source of fine opals.

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