An unparalleled grade—backed by unmatched science.
AGS earned 10 patents during the course of its groundbreaking optical engineering research into discerning the cut quality of an AGS Ideal® diamond.
Our patented methodology uses ray-tracing to analyze the light performance of a diamond in order to measure the attributes most important to a diamond’s beauty. The result? An uncompromising view of how light is reflected and refracted throughout the diamond.