Diamond Color

Key Points
A diamonds color is represented by letters of the alphabet starting at D.
The color range from D to F are called Colorless.
A colorless diamond allows more light to pass through it than a colored diamond, colorless diamonds emit more sparkle and fire.
The color range from H to J are called Near-Colorless.
Diamond color G or better is recommended.
Diamond Colors
D E F G H I J K L M N O P Q
Colorless Near Colorless Faint Yellow Light Yellow
Diamond Color Details
D Colorless. D is the highest color grade. Absolutley white and these diamonds display no color.
E Colorless. Very slight color. Extremely white and these diamonds display virtually no color.
F Colorless. Slight color but still considered a colorless grade, a high quality diamond that offers excellent value. F colored diamonds are very beautiful.
G Near-colorless. Color may be very slightly noticeable compared to diamonds of better grades. G color offers excellent value
H Near-colorless. Yellow color may be noticeable compared to diamonds of better grades. Chose H colored if size is very important to you.
I Near-colorless. Yellow color is noticeable compared to diamonds of better grades. Guthries does not offer I colored diamonds.
J Near-colorless. Yellow color is very be noticeable compared to diamonds of better grades. Guthries does not offer J colored diamonds.

Color Explained
Colorless (D-F): Colorless Diamonds are vividly white and in the D/E range these diamonds display virtually no color. F colored diamonds are only very slightly less white. Colorless diamonds are very beautiful and recommended.
Near Colorless (G-J): Diamonds within the near colorless range appear vary considerably. Color G is very white and represents excellent value. When the color is H to J there will be noticeable to very noticeable yellow colors. G colored diamonds are recommended as excellent value.

Fluorescence Explained
Fluorescence describes colors within the diamond that are not white. Fluorescence is most often blue. Fluorescence is graded from None to Very Strong. The best fluorescence level to select depends on the diamond color that you chose.
With colorless diamonds it is best to have no fluorescence as these diamonds are very white. It is recommended that you select fluorescence of None or Slight.
For diamonds that are near-colorless a fluorescence grade of medium or strong blue is best because the blue offsets, to a limited degree, the yellow in the diamond.
Diamonds with very strong fluorescence can give the diamond a slight hazy or oily appearance and should be avoided.

Also See
Diamond Education
Diamond Selection

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