Accredited Gemologist Association
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Gemological Resources

GIA Library Archives

ASA Jewelry Appraisal Handbook

US Federal Trade Commission (FTC) Guides for the Jewelry, Precious Metals, and Pewter Industries

Articles of Interest

Cornerstone Archive

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 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 of Cornerstone Publications and AGA Newsletters/Updates
(These .pdf files - require Adobe Reader)

July 1976 - Volume 1 Number 1

January 1983

January 1984

Summer 1985

March 1986

May 1987

Summer 1987

Spring 1988 

May 1988 

Fall 1988

January–February 1988

November 1989

Summer 1990

September 1990

December 1990

February 1991

December 1991

Spring 1992

Summer 1992

Fall (Autumn) 1993

Winter 1993

Spring 1994

Summer 1994

Fall/Winter 1994

Spring/Summer 1995

Fall 1995

Spring 1996

Winter 1996

Summer 1997

Summer 1997 Newswire

Winter 1997

Winter 1997 Newswire

Spring 1998

Summer 1998

Fall 1998

Spring 1999

Fall 1999

Winter 1999

Fall 2000

Fall 2000 Newswire

Winter 2000

Winter 2001

Winter 2002

Winter 2003

Fall 2008

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