The term “polish” refers to the overall condition of the surfaces of a finished diamond. A rating is assigned based on the visibility of polishing lines, which are caused by small diamond crystals embedded in the polishing wheels used by diamond cutters. These lines are present after the diamond cutter has finished cutting and polishing the surface of the diamond.

The polish of a diamond can affect how much light is able to pass through it, impacting the diamond’s brilliance. Diamonds with excellent, very good, or good polish ratings are the most desirable and are the ones that Gems For Everyone selects for their Signature Diamonds Certificate of Authenticity.
Diamonds with poor polish will be less brilliant and less valuable. Poorly polished facets may reduce the intensity of a diamond’s reflected light or the light that is refracted within the diamond.

Gems For Everyone does not offer diamonds with poor or fair polish ratings. The differences between excellent, very good, and good ratings are difficult to discern with the naked eye, but become more noticeable when the diamond is magnified. A rating of fair or poor means that the flaws in the polish are visible to the naked eye and will impact the overall beauty of the diamond.