DIAMOND GRADING CHART - IGI · 2020-05-18 · DIAMOND GRADING CHART CLARITY Internally Flawless...
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DIAMOND GRADING CHART CLARITY Internally Flawless Very Very Slightly Included Very Slightly Included Slightly Included Included I.F. VVS 1 VVS 2 VS 1 SI 1 SI 2 I 1 I 2 I 3 VS 2 CARAT COLOR D - F Colorless G - J Near Colorless K - M Slightly Tinted N - R Very Light S - Z Light CUT Total Depth Table Width Crown Angle Pavilion Angle Girdle Diameter Crown Height Girdle Culet Pavilion Depth Too Deep Too Shallow Excellent to Good Hearts & Arrows “ Ideal ” Excellent to Very Good Light Return SHAPE Round Emerald Heart Marquise Pear Cushion Radiant Oval Princess THE GLOBAL AUTHORITY IN DIAMOND, GEMSTONE AND JEWELRY GRADING www.igi.org 1975 I N T E R N A T I O N A L G E M O L O G I C A L I N S T I T U T E
Transcript of DIAMOND GRADING CHART - IGI · 2020-05-18 · DIAMOND GRADING CHART CLARITY Internally Flawless...
DIAMOND GRADING CHART
CLARITY
InternallyFlawless
Very VerySlightly Included
Very SlightlyIncluded
SlightlyIncluded Included
I.F. VVS 1 VVS 2 VS 1 SI 1 SI 2 I 1 I 2 I 3VS 2
CARAT
COLOR
D - F
Colorless
G - J
Near Colorless
K - M
Slightly Tinted
N - R
Very Light
S - Z
Light
CUT
Tota
l De
pth
Table WidthCrown Angle
Pavilion Angle
Girdle Diameter
CrownHeight
Girdle
Culet
Pavilion Depth
Too DeepToo Shallow Excellent to Good
Hearts & Arrows
“ Ideal ”Excellent to Very Good
Light Return
SHAPE
Round Emerald HeartMarquise Pear Cushion Radiant Oval Princess
THE GLOBAL AUTHORITY IN DIAMOND, GEMSTONE AND JEWELRY GRADING www.igi.org
1975
IN
TER
NA
TIO
NA
L GEMOLOG
ICA
L INSTITUTE