The color of a diamond can range from colorless (pure white) to shades of yellow and brown. The closer a diamond is to colorless the more rare and expensive the diamond.

If a diamond is colorless and very transparent, it may be given a "D" color grade. This is the highest color grade in the Gemological Institute of America's (GIA) grading system.

The GIA color grading scale is as follows:

D - F Colorless	G - J Near Colorless	K - M Slightly Tinted	N -R Very Light Yellow	S - Z Light Yellow - Yellow
	Colors are approximations

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Last modified: November 20, 2009