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Demand was brisk at the 2018 AGTA show in Tucson.
Tucson 2018 Overview

An overview of the 2018 Tucson gem shows.

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Update from the Responsible Jewellery Council

Edward Johnson and Anne-Marie Fleury discuss the status of RJC's efforts to update its existing standards.

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The Initial Examination
Article
The Belmont Mine and an Emerald’s Journey from Mine to Market

Follow a significant emerald from the Belmont emerald mine in Brazil to a retailer in Bangkok and learn the story of one of the world’s most modern colored gemstone mines, while seeing how a gemstone moves from mine-to-market.

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Colombian independent miners
Colombian Emerald Industry: Winds of Change

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

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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 gemology, 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 made at the 2017 JCK Las Vegas show.

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A sorter works at a table lined with sorted piles of diamond rough.
Article
Diamond Producers Aim for Lower Qualities in Today’s Market

The average value of rough diamonds mined last year took a sharp drop, while demand has trended toward smaller stones and lower qualities.

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Rough sapphires from Chila, Ethiopia.
Sapphires from Northern Ethiopia

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

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Miners, working in a row along a body of water, use hand sieves to sift gravel.
Article
International Group Sets Sights on Sustainable Gemstone Mining

Organization for Economic Cooperation and Development reviews issues on sustainable mining practices and increasing returns for artisanal miners.

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Ruby crystal from Montepuez
Article
Series of Articles on Rubies from Mozambique

GIA publications since 2009 on ruby mining in Mozambique

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Article
Pyrope Garnet and Montana Sapphires Highlight Winter 2015 G&G

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

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