Jewelry and Diamond Appraisals

Jewelry and Diamond Appraisals

The American Gem Society is dedicated to building trust and confidence with the jewelry-buying public. With that in mind, American Gem Society members aim to provide their customers with the very best service and information available in appraising diamonds and gemstones.

Independent Certified Gemologist Appraisers and Certified Gemologist Appraisers of the American Gem Society possess the necessary skills and experience to render valuation reports for your jewelry items. They have been educated in both gemology and the methodologies of jewelry and diamond appraisals.

The American Gem Society’s Certified Gemologist® Appraiser (CGA) and Independent Certified Gemologist® Appraiser (ICGA) title is the most highly regarded in the industry.  Earning these titles requires a diploma in gemology and additional advanced education, and experience in determining the value of gemstones and jewelry. All CGA and ICGA titleholders also must pass annual Recertification exams to maintain this prestigious title.

The ICGA member does not buy or sell diamonds, jewelry or gemstones. They also have completed an advanced course on various purposes of appraisals including estate taxes, divorce, or collateral.

Both the CGA and the ICGA must maintain an Accredited Gem Laboratory®, which consists of a gemological reference library and the gemological testing equipment necessary to provide accurate identifications. There’s no better source for fair and accurate appraisals.

Remember, the value assigned to jewelry can vary depending on the function of the appraisal or report, so it is essential to establish your needs and purpose of the appraisal with your appraiser.

Since a jewelry appraisal may be one of the most important and complicated documents to complete accurately, only a credentialed professional should provide information and reliable documentation on the quality and value of your jewelry. That is why it’s essential to work with an unbiased appraiser you can trust, a gemologist appraiser certified by the American Gem Society.


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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