Diamond is the only gemstone prized for its lack of color. Color is graded against a set of master stones under a special light which simulates northern sunlight. While many diamonds appear colorless, subtle differences exist, and diamonds may have subtle yellow or brown tones. A tint of yellow or brown in a diamond is due to nitrogen trapped inside. How close a diamond is to colorless determines its value, so the less color a diamond has, the more valuable it is.

Color Chart