Accredited Gemologist Association
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Gemological Resources

GIA Library Archives

ASA Jewelry Appraisal Handbook

Gem Testing Techniques by Alan Hodgkinson

Articles of Interest

Cornerstone Archive

Tanzanite - Facts, Fears & Fakes
This presentation is made available at the request of the presenter. The subject matter has important implications for the global market.

About Surface Treated Color Diamonds

Laser Induced Breakdown Spectroscopy (LIBS) in Gemology

A Brief History of Heat: Heat Treatment of Ruby & Sapphire

Burma’s Jade Mines: An Annotated Occidental History

Vampire Blues: Surface-diffusion treated sapphires

The Skin Game: Orange sapphires pouring out of Thai burners’ ovens

Seeing Red: A Connoisseur’s Guide to Ruby.

Passion Fruit A Lover’s Guide to Sapphire

Love and Hate: Max Green’s stolen millions and the Lao sapphire mines

There's a Rumble in the Jungle: The Sapphire Face-lift Face-off Saga

Catfights: Enhancement Codes & Trade Wars

Cloak and Dagger: The Politics of Opticon

The Crying Game: Diamond Color Grading

Foreign Affairs: Fracture Healing / Filling of Möng Hsu Ruby

From Russia with Jade: A journey to Russia’s jade mines

Heaven & Hell: The Quest for Jade in Upper Burma

The Name Game: Conventions for selecting the names of precious stones

Pigeon’s Blood: A Pilgrimage to Mogok – Valley of Rubies

Rubies and Spinels of Afghanistan: A Brief History

Spinel Compounds: Background & Historical Perspective

Thailand’s Jewelry Industry: A ‘Black Paper’ on the State of the Trade

Tracing the Green Line: A Journey to Burma’s Jade Mines

Uncle Ho’s Rubies: Vietnam’s Quy Chau Ruby Mines

Where the Twain Do Meet: Thailand’s Gem-Trading Border Towns

Archive (.pdf files - requires Adobe Reader)

Cornerstone - Fall 1988

Cornerstone - November 1989

Cornerstone - December 1990

Cornerstone - December 1991

Cornerstone - February 1991

Cornerstone - Spring 1992

Cornerstone - Summer 1992

Cornerstone - Fall 1993

Cornerstone - Winter 1993

Cornerstone - Spring 1994

Cornerstone - Summer 1994

Cornerstone - Fall / Winter 1994

Cornerstone - Spring / Summer 1995

Cornerstone - Fall 1995

Cornerstone - Spring 1996

Cornerstone - Winter 1996

Cornerstone - Summer 1997

Newswire - Summer 1997

Newswire - Winter 1997

Cornerstone - Winter 1997

Cornerstone - Spring 1998

Cornerstone - Summer 1998

Cornerstone - Fall 1998

Cornerstone - Spring 1999

Cornerstone - Fall 1999

Cornerstone - Winter 1999

Cornerstone - Fall 2000

Cornerstone - Winter 2000

Cornerstone - Winter 2001

Cornerstone - Winter 2002

Cornerstone - Winter 2003

Cornerstone - Fall 2008

Cornerstone - Spring 2016

Brochure from the early years of AGA


Contact Information Home Locate an AGA Member Membership Information Donations Event Gallery AGA Antonio C. Bonanno Award Resources, Links & Articles Event Info