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.