|
顏色 |
GIA (Gemological Institute of America) |
AGS (American Gem Society) |
HRD (Hoge Raad voor Diamnt) |
|
無色 Colorless |
D |
0 |
Exceptional White+ |
|
E |
0.5 |
Exceptional White | |
|
F |
1.0 |
Rare White+ | |
|
近乎無色 Near Colorless |
G |
1.5 |
Rare White |
|
H |
2.0 |
White | |
|
I |
2.5 |
Slightly Tinted White | |
|
J |
3.0 | ||
|
微黃色 Faint Yellow |
K |
3.5 |
Tinted White |
|
L |
4.0 | ||
|
M |
4.5 |
Tinted Colour | |
|
很淡黃色 Very Light Yellow |
N |
5.0 | |
|
O |
5.5 | ||
|
P |
6.0 | ||
|
Q |
6.5 | ||
|
R |
7.0 | ||
|
淡黃色 Light Yellow |
S |
7.5 | |
|
T |
8.0 | ||
|
U |
8.5 | ||
|
V |
9.0 | ||
|
W |
10 | ||
|
X | |||
|
Y | |||
|
Z |
|
顏色 |
GIA (Gemological Institute of America) |
AGS (American Gem Society) |
HRD (Hoge Raad voor Diamnt) |
|
無瑕級 |
FL |
0 |
Loupe Clean |
|
內無瑕級 |
IF | ||
|
極輕微內含級 |
VVS1 |
1 |
VVS1 |
|
VVS2 |
2 |
VVS2 | |
|
輕微內含級 |
VS1 |
3 |
VS1 |
|
VS2 |
4 |
VS2 | |
|
微內含級 |
SI1 |
5 |
SI1 |
|
SI2 |
6 |
SI2 | |
|
內含級 |
I1 |
7 |
P1 |
|
I2 |
8 |
P2 | |
|
9 | |||
|
I3 |
10 |
P3 |
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