ASET Image Charts
ASET Image Charts
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The ASET Charts represent images seen through both the Desktop and Handheld ASET devices. The ASET Charts enable you to assess fundamentals of light performance. Light Performance is the foundation of the new AGS Cut Grade System. The ASET Charts help manufacturers make better decisions when cutting diamonds, retailers make better decisions with diamond selection, and consumers make better buying decisions.

ASET® Image Poster Member Price:  $5.00
ASET® Image Poster Non-Member Price: $7.00 


ASET® Theory Tutorial 

If you have any questions, please contact us at 866.805.6500 or

U.S. Patent Nos.: 7,336,347 - 7,355,683 - 7,372,552 - 7,382,445 - 7,420,657


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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