The AGS gem laboratories continually promote consistency and accuracy in diamond grading. Learn more at Jewelry Association | Top Jewelers, Diamond Education
The American Gem Society Laboratories
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Since 1996, the AGS Laboratories has provided modern diamond grading services to members of the industry. Today, we continue with our innovative approaches to diamond grading and consistently adhere to the AGS consumer protection ethics and standards.

The AGSL promotes the highest professional standards of ethics, education and service. Consumers benefit from AGSL documents because they are empowered with detailed information about their diamond, and can rest assured that the report is the industry's most thorough and consistent.

The team of professionals at the AGS Laboratories are dedicated and committed to the following:

  • Consistency in Diamond Grading
  • Accuracy in Diamond Grading 
  • Superior Customer Service is our Guarantee to You 
  • Flexibility in Grading Report Formats
  • Results Oriented....Upon Receipt, Five Business Day Turnaround Time to Obtain the Grading Results

Explore the Possibilities....buying a diamond does not have to be scary or frustrating.  The more you know about a diamond's quality, the easier the diamond buying process.  When buying a diamond,  simply request to see its AGS Laboratories report; the only report that grades a dianond to the industry's highest standards. 

Click here to visit The American Gem Society Laboratories website.  


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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