Looking for Diamond Quality documents and consultation? Learn more about AGS Labs for diamond trade at AmericanGemSociety.org. Jewelry Association | Top Jewelers, Diamond Education
Diamond Grading Reports
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AGS Laboratories offers a diamond grading system for both consumers and jewelers. Make sure to use AGS Laboratories for Diamond Quality and Grading reports along with Laser Inscription. You can also view our Document Archives for a description of our products.

Have questions or comments? Contact AGS Laboratories.

Platinum Diamond
Quality Document

Diamond Quality Document

Diamond Quality Certificate



Diamond Quality Report



Gold Diamond Quality Report



Diamond Consultation



Diamond Quality Analysis



Scintillation Report



Supported Shapes


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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

info@ags.org (866) 805-6500