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

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Page 1: DIAMOND GRADING CHART - IGI · 2020-05-18 · DIAMOND GRADING CHART CLARITY Internally Flawless Very Very Slightly Included Very Slightly Included Slightly Included Included I.F

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