Diamonds occur in a wide range of colors. The normal market range is colorless to light yellow, brown, or gray. Diamonds with natural colors outside this “normal” range are classified as fancy colors.

Fancy colors include bright yellow, pink, blue and green. Colors like red, purple, and orange are extremely rare.

Color is graded most frequently using the GIA Color Grade Scale which consists of 23 letter grades, ranging from D (Colorless) to Z (heavily tinted). “Fancy” diamonds are grade Z+.