Catalog Request A diamond grading certificate is a report given by an independent and professional gemological laboratory. The diamond is evaluated for its quality, not its value.
Every diamond is unique.
The certificate will map out all the diamond's recognizable and individual characteristics. The grading report also includes a hand-drawn map of the diamond's inclusions. Since no two diamonds are exactly alike you can always check that the certificate matches the diamond. T here are dozens of gemological laboratories handing out certificates but only a few are respected by the diamond trade. A Unique number representing your diamond.