Y0UR GUIDE FOR GRADING DIAMONDS

GIA
COLOR
DESCRIPTION
D Blue White
E Blue White
F Fine White
G Fine White
H White
I Weakly Tinted White
J Weakly Tinted White
K Tinted White
L Tinted White
M Cape White
N Cape White
O Cape
P Cape
Q Light Yellow
R Light Yellow
S-Z Yellow

GRADING FOR CLARITY
IF Internally flawless. Free of inclusions under 10x magnification.
VVS1
VVS2
Very very small inclusions: very few, very small inclusions under 10X magnification. Difficult to see.
VS 1
VS 2
Very small inclusions: very small inclusions under10X magnification. Difficult to find
SI 1
SI 2
Small inclusions. Small inclusion recognzed under10X magnification
I1 Pique 1:inclusions immediately recognized under 10X magnification, but not diminishing the brillance
I2 Pique 2:large and or numerous inclusions, slightly diminishing the brillance.recognized with the naked eye
I3 Pique 3:large and or numerous inclusions, diminishing the brillance considerably

Source: Gemstones of the World by Walter Schumann

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