Color

An ideal diamond is colorless. In a colorless stone, light will pass through, emitting a prism of light. The diamond color scale ranges from D (colorless) to Z (light yellow or brown). The difference between one grade to another is very subtle, as can be seen by the number of grades within any one category. A diamond’s Color Grade is determined by comparing it to a master set under “daylight equivalent” light bulbs.

There are additional grades beyond Z that represent the Fancy Colored Diamonds.