grading laboratories

American Gem Society - AGS Laboratory

AGS Laboratories is the world's premier diamond grading laboratory for diamond cut, the first diamond laboratory to offer a diamond cut grade based on proven science and the first laboratory to offer diamond grading reports for diamond cut on fancy shapes including princess, emerald and oval.

AGS Laboratories' diamond cut grading reports offer easy-to-read grading scales. Our diamond grading reports provide you with all the information you need to make the best, most informed buying decision, and offers a detailed diamond cut grade. The objective of AGS Laboratories is simple, to offer quality diamond grading information--especially on diamond cut--that is user-friendly and set to the highest standards.

If a diamond cut grade is an important factor to you in your diamond buying decisions, then ask for a diamond grading report from AGS Laboratories. We have everything you need in a diamond laboratory: a complete diamond grading report, the diamond cut grade, and the confidence that comes from knowing your report is from a diamond grading laboratory you can trust.

The AGS 0-10 Grading System

The AGS 0-10 grading scale is easy to understand. The highest possible grade is zero. 10 is the lowest. For example, a diamond with a colour grade of 3 has less colour than a diamond with a colour grade of 5. When writing the grades of a diamond, diamond cut grade is first, then diamond colour, then diamond clarity, and then carat weight. For example, a diamond that has the finest diamond cut grade, is colourless, free of inclusions and blemishes, and one carat in weight would be written as: 0/0/0 - 1.000 carat. In the American Gem Society Diamond Grading Standards, this would be known as the famed Triple Zero™ or Triple 000.

For all products and more information on AGS please visit www.agslab.com

Sample of AGS Grading Report

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