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Multi-colored gems are superimposed on an image of glacier peaks.

Article

Gems and Minerals from the Sub-Arctic

Sharon Bohannon, March 17, 2017

Circumnavigate the boreal reaches of the globe to explore gems from polar regions.

Update on Gemstone Mining in Northern Mozambique

Wim Vertriest and Vincent Pardieu, January 27, 2017

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

Diaz needs to crouch low as he makes his way through jungle terrain with a backpack on. He wears boots and gloves to protect him on the uncut path.

Article

30-Year Marine Corps Veteran Fulfils Dream of Becoming a Field Gemmologist

Jaime Kautsky, November 23, 2016

The rigours and often-harrowing conditions of gemmology field expeditions are no match for a 30-year Marine veteran with a love of gems.

Article

Shenzhen: The Frontier of China’s Gem and Jewellery Industry

Tao Hsu, January 25, 2016

All jewellery professionals are familiar with the city of Shenzhen, a global jewellery manufacturing centre and a leader of China’s fast-growing gem and jewellery industry. Join the GIA team as we tour the city and discover more about its leading jewellery brands.

Update on gemstone mining in Luc Yen, Vietnam

Pham Van Long, Vincent Pardieu, and Gaston Giuliani, January 31, 2014

Explores the emergence of the Luc Yen area as a producer of corundum, spinel, tourmaline and other coloured stones.

The Elahera Gem Field in Central Sri Lanka

Mahinda Gunawardene and Mahinda S. Rupasinghe, June 1, 1986

The Elahera gem field currently provides approximately 35% of the gemstones exported from Sri Lanka.

A Status Report on Gemstones from Afghanistan

Gary W. Bowersox, December 1, 1985

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

Gemstones of Pakistan: Emerald, Ruby and Spinel

E. J. Gübelin, September 1, 1982

This article reports on three gem materials currently being mined in Pakistan.

Sri Lanka: The Gem Island

Peter C. Zwaan, June 1, 1982

An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.

Article

GIA's Gübelin Gem Project: Spinel

Found in nearly every colour – most notably red, pink and blue – spinels are popular gemstones because of their abundance, moderate cost and attractiveness.

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