Normally, the range of diamonds is based on the absence of color and are described using the D to Z color grading scale. The diamonds that exhibits a more intense yellow or brown than Z color grading scale are considered Fancy Color Diamonds. With only one out of ten thousand, there are extremely rare diamonds that possess natural color.

Unlike colorless diamonds, fancy colored diamonds also have grade up face. The strength of color is the most important factors in determining the value of a naturally colored diamond. The value of fancy diamonds increases with the strength and purity of the most prominent hue within the stone.