The color of a diamond ranges from absolutely colorless to visibly yellow.  There is not much difference to the naked eye for higher grades of color.  After the three highest color grades, a faint yellow tint begins to appear and gets deeper and more noticeable as you go further down the color scale.

The color scale from colorless to yellow is graded as follows:  D (Blue White), E (Ice White), F (Fine White), G (White), H (Top Commercial White), I (Commercial White), J (Top Silver), L (Top Silver), L (Silver Cape), M (Light Cape).

Fancy Diamonds are diamonds with an especially deep color hue such as pink or yellow.

A diamonds florescence is also considered.  Fluorescence appears when a diamond is exposed to ultraviolet light, but usually has no effect on a diamond in regular light conditions.

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