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8 GHI GEM LAB (844.443.6522)[email protected]
© 2015 GHI. All Rights Reserved.
CrownGirdle
Pavilion
Depth
Crown AnglePavilion Angle
TableDiameter
Culet
Fair Light Return (Too Shallow)
Fair Light Return (Too Deep)
PROPORTIONS
Very Good to Ideal Light Return
SHAPE
DEFColorless
GHIJNear Colorless
S-T U-VLight Yellow
W-X Y-ZLight Yellow
KLMFaint Yellow
N O-P Q-RVery Light Yellow
COLOR GRADE
DEFGHIJKLMNO-P Q-RS-T U-VW-X Y-Z
ColorlessNearColorless
FaintYellow
Very LightYellow
LightYellow
DEF
GHIJ
KLMN
O-P Q
-R
S-T U
-V
W-X
Y-Z
Color
less
Near
Color
less
Fain
t
Yello
w
Very
Ligh
t
Yello
w
Ligh
t
Yello
wDEF
GHIJ
KLMN
O-P Q
-R
S-T U
-V
W-X
Y-Z
Color
less
Near
Color
less
Fain
tYe
llow
Very
Ligh
tYe
llow
Ligh
tYe
llow
DEF GHIJ KLMN O-P Q-R S-T U-V W-X Y-Z
Colorless NearColorless
FaintYellow
Very LightYellow
LightYellow
DEF
GHIJ
KLMN
O-P Q-R
S-T U-V
W-X Y-Z
Colorless
Near
Colorless
Faint
Yellow
Very Light
Yellow
Light
Yellow
DEF
GHIJ
KLMN
O-P Q-R
S-T U-V
W-X Y-Z
Colorless
NearColorless
FaintYellow
Very LightYellow
LightYellow
CLARITY GRADE
Internally Flawless No visible inclusions at 10xmagnification; may have minor surface blemishes.
Very Very Slightly Included Very, very small inclusions; difficult to see at 10x magnification.
Very Slightly Included Very small inclusions; difficult to somewhat easy to see at 10x magnification.
Included Medium or large inclusions; obvious to the unaided eye.
Slightly Included Small inclusions; easy to see at 10x magnification or, at times, the unaided eye.
IF
VVS1
VS1
VVS2
VS2
SI2
I2
SI3
I3
SI1
I1
Carat 0.25 0.50 1.00 1.25 1.50 1.75 2.00 3.00Diameter (mm) 4.1 5.2 6.5 6.9 7.4 7.8 8.2 9.4Height (mm) 2.5 3.1 3.9 4.3 4.5 4.7 4.9 5.6
CARAT WEIGHT
Cushion
Pear
Emerald
Princess
Marquise
Radiant
Oval
Round
ALL ABOUT DIAMONDS
