Diamond Color


Although diamonds are usually thought of as  being colorless, they occur in all colors.   (The Hope Diamond, for example is blue.) Color has two meanings in the diamond industry. Usually, it refers to an absence of color - a diamond said to have "fine color"  frequently has no visible color at all. On the other hand we use the term fancy color to describe naturally colored diamonds  with distinct, attractive tints. (Artifically colored diamonds  are called treated). Most diamonds are slightly yellow or brown, and are graded by how closely they approach colorless; the less color, the higher the value. But with fancy colors, the grade and value increase with color intensity.

 GIA Color Grades

diamond colors

D

E     Colorless
F

G
    Stones in these grades will "face up"
colorless,
H     (i.e. slight traces of color will not be apparent
I        in mounted stones to other than the trained eye).
         
J     Small stones in this range will
"face up" colorless
K    when mounted, but larger ones will be tinted.
L

M
N
O
P
Q
R      Mounted stones in these grades will display a   
S       yellowish tint even to the untrained eye
T
U
V
W
X
Y
Z


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