A trusted name in diamond grading...and so much more.
Founded to support the American Gem Society (AGS) mission, AGS Laboratories is a nonprofit diamond grading laboratory dedicated to consumer protection. As a result, jewelry buyers have come to know the AGS Laboratories as the most trusted
name in diamond grading. Members of the jewelry and diamond industry, like you, know us as the leader in grading reports that provide consistency and accuracy based on science.
Over the years, we’ve grown into a full-service diamond grading laboratory, offering reports for round brilliant and fancy shapes, as well as mounted goods, custom and proprietary reports, laser inscription, natural diamond verification,
diamond sorting and online solutions.
Your customers look for the name. You look for the premier, full-service, diamond grading laboratory in the industry. Together, AGS Laboratories makes the grade—in every sense of the term.