Diamond certificates are issued by accredited gemological laboratories to ensure that all the details of the diamonds are valid.
A diamond certificate can also be identified as diamond grading report, or a diamond dossier®.
The most common grading laboratories are:
Gemological Institute of America (GIA)
International Gemological Institute (IGI)
European Gemological Laboratory (EGL)
Hoge Raad Voor Diamant (HRD)
Each certificate has the information that was collected throughout the analysis, which reflects the 4 C’s.