What is Diamond Certification?
A diamond certificate is a printed report based on a gemological analysis of a specific stone. It is prepared in an independent laboratory by certified gemologists.
What Will a Diamond Certificate Tell You?
The certificate will state your diamond’s 4 C/s: color, clarity, cut, carat weight. It will describe the diamond’s shape, measurements, table and depth percentages, and grade the polish and characteristics like fluorescence, graining, and imperfections.
Who Issues a Diamond Certificate?
Diamond certificates are issued by independent gemological laboratories. There are several grading laboratories, the most prominent being: The Gemological Institute of America (GIA), The European Gemological Laboratories (EGL), The American Gem Society (AGS) and The International Gemological Institute (IGI).