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Tsavorite garnet and red spinel from Miriam Kamau’s mining operation in Kenya
Interview with a Kenyan Miner and Dealer

Miriam Kamau relates how she became a prominent dealer and miner.

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Montana Sapphires Video
Article
Romancing the Source: Montana Sapphires

Join a GIA field team on an expedition to Montana and let us take you to the sapphire mines, where you can see the natural beauty of the mining area as well as meet the rugged individualists who mine there.

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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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Hunting for Spinels in Vietnam
Article
Seek the World’s Most Vivid Blue Spinel with GIA Field Gemologists

Join GIA’s field gemologists as they seek Vietnam’s exotic sky-blue spinel.

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Hunting for Ruby, Sapphire, and Spinel in Mogok, Myanmar
Article
GIA Field Gemologists seek Ruby, Sapphire, and Spinel in Mogok, Myanmar

Venture deep underground with GIA’s Field Gemologists Vincent Pardieu and Dr. Aaron Palke as they explore the geology of Mogok’s ruby, sapphire, and spinel deposits.

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Mogok
Article
Romancing the Source: Myanmar

Accompany GIA field gemologists on a true gemstone mining adventure in exotic Mogok, Myanmar. This legendary source has been called “The Valley of Rubies,” but also produces a variety of other gemstones.

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Article
Spring 2015 G&G Examines Blue Spinel, Chinese Jewelry Design and the Latest in Synthetics

G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.

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Article
Sri Lanka: Treasure Island

A gemological tour of Sri Lanka’s gemstones.

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Rough blue spinel crystals from Luc Yen
Blue Spinel from the Luc Yen District of Vietnam

Offers geological context and gemological characterization of this increasingly popular vivid blue spinel from northeast Vietnam.

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A Status Report on Gemstones from Afghanistan

An overview of the plentiful and various gem materials being discovered and produced in Afghanistan.

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