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 Diamond |
| A International Convention was established for the range of the colors of diamond: it is “Old Terms”. Concurrently to this convention, France has also a standard. In the United States, “Gemological Institute of America” worked out a new scale.
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French Standard |
GIA |
Old Terms |
Exceptional white + |
D |
River |
Exceptional white |
E |
Extra white + |
F |
Top Wesselton |
Extra white |
G |
White |
H |
Wesselton |
Shaded white |
I |
Top Crystal |
J |
Slightly Tinted |
K |
Crystal |
L |
Tinted |
M and + |
From Top Cape to Yellow |
Diamonds of special color |
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