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11 Φεβ 2013 · Print this handy guide and take it with you wherever you need to better understand the 4Cs of diamond quality. We hope our diamond buying guide will help you navigate and understand the relative quality differences that exist on the color, clarity and cut grading scales.
DIAMOND GRADING CHART CLARITY Internally Flawless Very Very Slightly Included Very Slightly Included Slightly Included Included I.F. VVS 1 VVS 2 VS 1 VS 2 SI 1 SI 2 I 1 I 2 I 3 CARAT COLOR D - F Colorless G - J Near Colorless K - M Slightly Tinted N - R Very Light S - Z Light CUT Total Depth Crown Table Width Angle Pavilion Angle Girdle ...
Diamond Grading Chart www.igi.org THE GLOBAL AUTHORITY IN DIAMOND, GEMSTONE AND JEWELRY GRADING English I 1975 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. Title: 4c's English 2022 Created Date:
Diamond Grading Chart www.igi.org THEGLOBALAUTHORITYINDIAMOND,GEMSTONEANDJEWELRYGRADING English I 1975 N T E R N A T I O N A L G E MOLO G I C A L I N S T I T U T E Carat 2,4 0,05 3,0 0,10 3,8 0,20 4,0 0,25 4,3 0,30 4,7 0,40 5,1 0,50 5,7 0,70 6,4 1,00 6,9 1,25 7,3 1,50 7,7 1,75 8,1 2,00 9,2 3,00 8,7 2,50 6,2 0,90 Cut Total Depth Crown Table ...
The GIA Cut Grading System for the standard round brilliant diamond evaluates seven components: brightness, fire, scintillation, weight ratio, girdle thickness, symmetry, and polish. Carat weight is the measurement of how much a diamond weighs. A metric “carat” is defined as 200 milligrams.
The GIA Diamond Grading Report includes an assessment of the 4Cs – Color, Clarity, Cut, and Carat Weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond’s proportions.
GIA Diamond Grading Reports include testing to determine whether material is a diamond, and whether it is natural or laboratory-grown. 4C's quality assessment includes diamond color grade, clarity grade, carat weight and only for standard round brilliant - cut grade.
