Diamond Education

What is GIA certification?

A GIA diamond is a term used by diamond companies to designate diamonds that have been evaluated by the GIA. The GIA is an independent, non-profit organization that undertakes gem research, teaches gem professionals, and establishes diamond quality standards. The grading of diamonds is one of the GIA's primary tasks. You've probably heard or read about the four Cs of diamond quality: color, clarity, cut, and carat weight. This standard was developed by GIA, as were the scientific techniques for evaluating each "C" and the grading nomenclature used to define them. Learn more!