Research & News

Recent Articles
Sri Lanka Mine to Market

Sri Lanka: From Mine to Market, Part 1

Author: Andrew Lucas, Armil Sammoon, A. P. Jayarajah, Tao Hsu, Pedro Padua , Sep 30

Join GIA field gemologists and witness firsthand the entire value chain of the Sri Lankan colored gemstone and jewelry industry, from digging for sapphire in the mud to the glamour of finished jewelry on a fashion model.

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Traditional Jewelry Manufacturing

Sri Lanka: From Mine to Market, Part 2

Author: Andrew Lucas, Armil Sammoon, A. P. Jayarajah, Tao Hsu, Pedro Padua , Sep 30

The series continues with a revealing look at Sri Lanka’s jewelry manufacturing and retail sectors, as well as visits to five major gem mining and trading centers.

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Heavenly Bodies: Cult Treasures and Spectacular Saints from the Catacombs

Books: Heavenly Bodies: Cult Treasures and Spectacular Saints from the Catacombs

Author: Cigdem Lule , Sep 26

Review of Paul Koudounaris’s Heavenly Bodies: Cult Treasures and Spectacular Saints from the Catacombs.

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Dr. Gaston Giuliani

Conference Report: 21st General Meeting of the IMA

Author: James E. Shigley , Sep 24

A briefing on gem material sessions from the 21st General Meeting of the International Mineralogical Association, held in Johannesburg, South Africa.

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Natural Mixed Cape Diamond

Mixed-Type Cape Diamond

Author: Martha Altobelli and Paul Johnson , Sep 18

A natural cape diamond with unusual features is examined in the New York lab.

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Ruby & Sapphire: A Collector’s Guide

Books: Ruby & Sapphire:
A Collector’s Guide

Author: Edward W. Boehm , Sep 10

Review of Richard Hughes’s Ruby & Sapphire: A Collector’s Guide.

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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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