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IAC Conference on Responsible Gold

Olga González, August 9, 2018

A report from the eighth annual International Gold Conference, held in New York on 12-13 April 2018.

Gemstone Guidebook Project

Jennifer-Lynn Archuleta, August 9, 2018

A project coordinated by GIA and the NGO Pact provides a valuable educational tool to women miners in Tanzania.

Sapphires from Northern Ethiopia

Wim Vertriest, Vararut Weeramonkhonlert, Victoria Raynaud, and Simon Bruce-Lockhart, August 7, 2017

A new source of sapphires is found in the Tigray region of Ethiopia.

Update on the Rock Creek Sapphire Deposit

Warren Boyd and Keith Barron, July 31, 2015

An overview of recently expanded sapphire production at the Gem Mountain mine near Philipsburg, Montana.

New Deposit of Black Opal from Ethiopia

Lore Kiefert, Pierre Hardy, Tewodros Sintayehu, Begosew Abate, and Girma Woldetinsae, January 30, 2015

The Stayish mine in Ethiopia’s Wollo province has been producing black opal since 2013.