What is Certification?

Certified diamonds have been examined by independent experts and had their quality assessed and graded for, among other attributes, color, clarity and cut. The Gemological Institute of America (GIA) and the European Gemological Institute (EGL) are the two main recognized institutions that perform this work. We at DiamondDoctor.com use GIA exclusively and have noted the reasons above under “What guarantee does certification and a valuation give me?”