Become an American Gem Society Laboratories Client
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The AGS Laboratories establishes accounts only for businesses in the jewelry trade. There are two options for establishing an account. To establish an account for diamond grading (loose or mounted goods) and inscription services, please click the "NEXT" button to continue:


The entire AGS Lab Client Service Agreement can be accessed and/or downloaded as a PDF.  If you prefer to fax or mail your application, please download and print the PDF.
[Download Account Application].


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