News & Press: Member News

We're Still Here!

Tuesday, February 11, 2020  
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We recently sent an email notifying the membership that the location of our lockbox has changed. We'd like to clarify that the American Gem Society (AGS) headquarters has not moved, and our physical address is still 8881 West Sahara, Las Vegas, NV 89117. Also, the lockbox only pertains to remittance of check payments to the AGS.

The next time you need to send a check payment to the American Gem Society via standard mail, the address of the lockbox is:

LB 410009
American Gem Society
PO Box 35146
Seattle, WA 98124-5146

Please note, the above address applies only to checks for the American Gem Society. The lockbox address for AGS Laboratories is:

LB 410461
American Gem Society Laboratories LLC
PO Box 35143
Seattle WA 98124-5143

If you have any questions regarding the AGS lockbox, please contact Cynthia Williams at or call 702.560.6630. For AGS Laboratories, please contact Debra Zinni at or 702.560.6631.

We appreciate your continued support of the AGS and are grateful to have you in our community!


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