If you are not a diamond expert and want to value the quality of a diamond, you need some basic information that you can find on the certificates.

A certificate only has a value if it is accepted by the diamond industry.

The HRD (Diamond High Council - Hoge Raad voor Diamant), GIA (Gemmological Institute of America ), IGI (International Gemmological Institute), AGS ( Antwerp Gemological Servive), are very well estimated in Europe.

The EGL laboratories deals with the highest number of diamonds in the world in terms of volume.

HRD and IGI give the advantage to propose closed certificates (sealt stones).

Certificate example; click on the picture below