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Beijing Olympic medals

Green Nephrite Jade Attracts Buyers in Tucson

Author: Tao Hsu , May 28 Topics Trade

An update on the nephrite jade market from the 2015 GJX show.

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The Initial Examination

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

Author: Andrew Lucas, Duncan Pay, Shane McClure, Marcelo Ribeiro, Tao Hsu, Pedro Padua , May 22 Topics Manufacturing, Mining

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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De Beers Reduces Rough
Prices – Too Little?

Author: Russell Shor , May 19 Topics Fashion, Grading, Identification, Jewelry, Manufacturing, Pricing, Trade

De Beers reduces rough prices at May sight, undisclosed treated diamonds submitted to GIA and Sotheby’s, Christie’s sales break auction records − again.

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Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present

Books: Imperial Jade of Burma and Mutton-Fat Jade of India

Author: Richard W. Hughes , May 14 Topics History

Review of Imperial Jade of Burma and Mutton-Fat Jade of India, by S.K. Samuels.

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I Love Those Earrings: A Popular History from Ancient to Modern

Books: I Love Those Earrings: A Popular History from Ancient to Modern

Author: Sarah Froelich , May 4

Review of I Love Those Earrings: A Popular History from Ancient to Modern, by Jane Merrill with Chris Filstrup.

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Heat treatment of some pink sapphires

GIA Lab Reports on Low-Temperature Heat Treatment of Mozambique Ruby

Author: Vincent Pardieu, Sudarat Saeseaw, Stanislas Detroyat, Victoria Raynaud, Supharat Sangsawong, Thitima Bhusrisom, Sasithorn Engniwat, and Jonathan Muyal , Apr 28 Topics Inclusions, Treatment Process

Report on changes in Mozambique ruby following low-temperature heating, observed using inclusion analysis, FTIR spectroscopy, and LA-ICP-MS.

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Tips From the Bench
Modify Your Prong Pushers to Make Them More Versatile

Compiled by GIA’s Jewelry Manufacturing Arts Instructors
 

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Library
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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