what is the certification for diamonds
Diamond Certification. A diamond certificate, also known as a diamond grading report, is an easily understood document prepared by an expert gemologist that describes the key characteristics of a diamond. A certificate from a gemological laboratory verifies the quality of a loose diamond and allows non-experts to make educated diamond buying decisions.
Diamond Certification: GIA, AGS, HRD, IGI, EGL, GSI, GCAL, PGS. Posted by on July 11, 2015. The price you will end up paying for a diamond is highly dependent on how the diamond is graded in the grading report and/or certificateâ. The Gemological Institute of America's (GIA), HRD Lab's, American Gem Society's (AGS), and Gem Certification and Assurance Lab's (GCAL) reports command the highest premium in the industry.