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Rough and cut sapphires

A Study of Sapphire from Chanthaburi, Thailand and its Gemological Characteristics

Sudarat Saeseaw, Supharart Sangsawong, Wim Vertriest, Ungkhana Atikarnsakul, Victoria Liliane Raynaud-Flattot, Charuwan Khowpong, and Vararut Weeramonkhonlert, April 19, 2017

A report from the GIA Laboratory in Bangkok presents their findings on 59 blue sapphire samples obtained from a miner in the Khao Ploy Waen area, Chanthaburi.

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Four people seated in front of screen. One woman standing the far right.

RJC Panel Explores Colored Gemstone Issues at Baselworld 2017

Russell Shor, April 18, 2017 Topics: Mining, Trade

The Responsible Jewellery Council holds a discussion on the challenges, issues of certifying colored gem firms at the 2017 Baselworld fair.

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Luxury Firms Adjust to the Era of Diminished Opulence

Russell Shor, April 17, 2017 Topics: Trade

Baselworld 2017: Luxury jewelry designers rethinking blingy, gem-laden looks for more artistic designs. Pink Star diamond sells for $71 million.

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Van Cleef & Arpels: The Art and Science of Gems Book Cover

Book Review: Van Cleef & Arpels: The Art and Science of Gems

Matilde Parente, April 17, 2017

Review of Van Cleef & Arpels: The Art and Science of Gems.

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A jadeite necklace of graduated beads.

Jade Report: Increased Mining Creates Large Stockpiles

Russell Shor, April 11, 2017 Topics: Manufacturing, Trade

Myanmar’s jade stocks are piling up in gem warehouses near the border and in dealer safes. Mining has far exceeded the market’s ability to absorb it.

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Jade table screen.

Exhibition Review: Colors of the Universe: Chinese Hardstone Carvings

Eric Hoffman, March 27, 2017

Review of Colors of the Universe: Chinese Hardstone Carvings at New York’s Metropolitan Museum of Art.

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Tips From the Bench
How to Modify a Goldsmith Hammer

Compiled by GIA’s Jewelry Manufacturing Arts Instructors

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The First Point of Reference for Gems and Jewelry

Located on GIA's Carlsbad campus, The Richard T. Liddicoat Gemological Library and Information Center is the largest, most complete library of its kind.

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