Circle of Distinction Dinner
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Each summer, during the JA New York show, the American Gem Society hosts the Circle of Distinction Dinner at the prestigious Plaza Hotel. On this evening, the most prominent members of the jewelry industry gather to honor and recognize the achievements of their peers and colleagues.

This year we honored three esteemed leaders of the jewelry industry. Dr. James Shigley, a distinguished research fellow at the Gemological Institute of America (GIA) in Carlsbad, CA, received the prestigious Lifetime Achievement Award for his significant contributions to the industry throughout his career. Myriam Gumuchian, Co-Owner of Gumuchian, and Peter Engel, President of Fred Meyer Jewelers, were both awarded the distinctive AGS Triple Zero® Award for their many accomplishments and their dedication to the fine jewelry industry.              

The Lifetime Achievement Award

The Lifetime Achievement award is one of the highest honors an individual may receive from The Society. The award was instituted to honor those who have made significant contributions to the industry throughout their career.

The AGS Triple Zero®Award

The AGS Triple Zero® Award recognizes members of the jewelry industry for their accomplishments and contributions. Award recipients are not required to be Society titleholders or members, but must have a record of service to the industry and must uphold the professional excellence and ethical standards of the Society.


AGS Lifetime Achievement Award

2017 Dr. James Shigley
2016 Dione Kenyon
2015 John Green, CGA
2014 Lee Berg
2013 Beryl Raff
2012 The Bridge Family
2011 David and Sybil Yurman
2010 Terry Burman
2008 John J. Kennedy
2007 Nathan R. Light
2006 Matthew G. Stuller
2005 Ronald R. Harder
2004 Matthew Runci
2003 G. Robert Crowningshield, CG
2002 Michael D. Roman
2001 Richard T. Liddicoat, ECG
2000 Alfred L. Woodill


AGS Triple Zero® Awards 


Myriam Gumuchian

Peter Engel


Hank Siegel, CGA

Stewart Wicht


Georgie Gleim, CG

Yancy Weinrich


Doug Hucker, CGA

Joel Schechter


Howard Hauben

The Bromberg Family


Rob Bates

Mark Moeller, CGA


Kathryn Kimmel

David L. Rocha


Phyllis Bergman

Allen Brill

The Clark Family


Anna Martin

Hugh Glenn


Ellen Lacy, CGA

Tom Moses


Thomas A. Andruskevich

Michael Bondanza


William G. Underwood, CGA

The Green Family:
John A. Green, Marc A. Green and Robert E. Green


Mark & Candy Udell

George Holmes


The Kwiat Family:
David S. Kwiat, Lowell M. Kwiat, Sheldon F. Kwiat, and Jacques Roisen 

Lee Berg

Cecilia Gardner


Bill Boyajian, CG

Ralph Destino

Richard Krementz, Jr.

Harold Tivol


Helene Fortunoff

Laurie Hudson

Koichi Takahashi

Gabi Tolkowsky, RS


Herb Bridge, CG & Bob Bridge

Leon Tempelsman

Lynn Diamond

Walter Fischer



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Mission Statement

The American Gem Society (AGS) is a nonprofit trade association of fine jewelry professionals dedicated to setting, maintaining and promoting the highest standards of ethical conduct and professional behavior through education, accreditation, recertification of its membership, gemological standards, and gemological research.

The Society is committed to providing educational products to inform and protect the consumer and to contributing to the betterment of the trade by creating industry standards to protect the jewelry-buying public and the fine jewelry industry as a whole.

AGS Laboratories, founded to support the AGS mission, is a nonprofit diamond grading laboratory with a mission of consumer protection. Adhering to the AGS Diamond Grading Standards, AGS Laboratories is dedicated to offering diamond grading reports that provide consistency and accuracy based on science.

American Gem Society

8881 W. Sahara Ave. Las Vegas, NV 89117 (866) 805-6500