Diamonds that are of intense yellow or brown, or any other color are called fancy color diamonds. Diamonds of highest purity are totally colorless, and appear a bright white. The degree to which diamonds exhibit body color graded as follows according to GIS standards.
| Grade | Description |
|---|---|
| D | Colorless |
| E | |
| F | |
| G | Near Colorless |
| H | |
| I | |
| J | |
| K | Faint Yellow |
| L | |
| M | |
| N | Very Light Yellow |
| O | |
| P | |
| Q | |
| R | |
| S | Light Yellow |
| T | |
| U | |
| V | |
| W | |
| X | |
| Y | |
| Z |