The AGS Diamond Quality Document provides consumers and jewelers with detailed information about a diamond. Learn more at AmericanGemSociety.org. Jewelry Association | Top Jewelers, Diamond Education
Diamond Quality Document
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AGS Diamond Quality Document
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The AGS Diamond Quality® Document (DQD) is a keystone of the grading reports offered by the AGS Laboratories, and provides both our clients and consumers with the most detailed information available on a diamond. The Diamond Quality® Document is one of the most popular grading reports offered, showing cut (if available), color, clarity and carat weight, as well as a diamond profile showing measurements, a custom plot with the actual facet arrangement, and inscription details. To say that it is a completely comprehensive diamond grading report would be an understatement!

The Diamond Quality® Document is the industry’s only grading report that offers a three-dimensional performance-based cut grade for the Round Brilliant, Square Princess, Emerald, Oval and Cushion-shaped diamonds. 

The Diamond Quality® Document is also offered in a “Platinum” option.

The AGS Diamond Quality® Document — the first name in Ideal Cut..

Have questions or comments? Contact AGS Laboratories.

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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