Color

Color is the natural color visible in a diamond and does not change over time. Colorless diamonds allow more light to pass through than a colored diamond, releasing more sparkle and fire. Acting as a prism, a diamond divides light into a spectrum of colors and reflects this light as colorful flashes called fire. Just as when looking through colored glass, color in a diamond will act as a filter and will diminish the spectrum of color emitted. The less color in a diamond, the more colorful the fire, and the better the color grade. Color refers to the degree to which a diamond is colorless. Diamond color has a significant impact on its value. Color also has more influence on prices in higher clarity grades.

The professional color scale begins with the highest rating of D for colorless, and travels down the alphabet to grade stones with traces of very faint or light yellowish or brownish color. Usually, the closer a diamond is to colorless, the more beautiful and valuable it is. Diamonds graded D-F are considered "colorless," G-J are considered "near-colorless," K-M are "slightly colored," and N-Y usually appear light yellow or brown. Brilliant Earth only carries diamonds of superior color, ranged D-J.