What is the difference between the AGSL and the GIA certificates?
The Gemological Institute of America (GIA) and the American Gem Society Laboratories (AGSL) are among the most respected laboratories in the diamond industry. Both laboratories are highly respected due to their consistency and their conservative grading standards. There are minor differences in the terms that each lab uses to describe the qualities of the diamonds, but a certificate from either of these laboratories ensures that you have an accurate assessment of your diamond. Learn about the information included on the GIA certificate here, and learn about the AGSL certificate here.
