Certified Diamonds

There are no laws that regulate how diamonds are graded. There are differences among different grading companies and organizations. Diamonds On Web deals with certified/graded diamonds from the most respected labs: GIA, AGS and EGL.

GIA - Gemological Institute of America

The GIA Lab is the most common and sets the industry standard for COLOR and CLARITY grading.
View Sample GIA Diamond Report

The Diamond Dossier®, is issued for diamonds weighing less than 1 carat.
View Sample GIA Dossier Diamond Report

AGS - American Gem Society

The AGS Laboratories has been providing high quality diamond grading reports since 1996.
AGS were the first diamond laboratory to offer a diamond cut grade based on proven science and the first laboratory to offer cut grading for fancy shapes including princess, emerald and oval cut diamonds.

AGS Laboratories’ diamond grading reports offer easy-to-read grading scales.
View Sample AGS Diamond Report

EGL - European Gemological Laboratory

EGL is one of the world's premier gemological laboratories. For over 25 years it has offered the fine jewelry trade and consumers accurate, reliable gemstone identification and professional certification to validate their gemstone purchases.

EGL diamond grading reports are usually more affordable.
View Sample EGL Diamond Report