20.00 carat 17.6 mm.
15.00 carat 16.3 mm.
10.00 carat 14.0 mm.
8.00 carat 13.0 mm.
7.00 carat 12.4 mm.
6.00 carat 11.7 mm.
5.00 carat 11.0 mm.
4.00 carat 10.2 mm.
3.00 carat 
9.3 mm.
9.3 mm.2.50 carat 9.0 mm.
9.0 mm.2.25 cara 8.6 mm.
8.6 mm.2.00 carat 8.2 mm.
8.2 mm.1.75 carat 7.8 mm.
7.8 mm.1.50 carat 7.4 mm.
7.4 mm.1.25 carat 7.0 mm.
7.0 mm.1.00 carat 6.5 mm.
6.5 mm.0.85 carat 6.2 mm.
6.2 mm.0.75 carat 5.9 mm.
5.9 mm.0.65 carat 5.6 mm.
5.6 mm.0.50 carat 5.2 mm.
5.2 mm.0.40 carat 4.8 mm.
4.8 mm.0.33 carat 4.4 mm.
4.4 mm.0.25 carat 4.1 mm.
4.1 mm.0.20 carat 3.8 mm.
3.8 mm.0.15 carat 3.4 mm.
3.4 mm.0.10 carat 3.0 mm.
3.0 mm.0.07 carat 2.7 mm.
2.7 mm.0.05 carat 2.5 mm.
2.5 mm.0.03 carat 2.0 mm.
How many carats is my diamond?
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Ring size, measure
What is an Ideal respectable or common carat size
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How big must be a diamond to buy?
As a rule of thumb two months salary is the usual recommended spending on a diamond for an engagement ring or solitaire ring setting.
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Carat size image millimeter width
millimeter widthDiamond carat size comparison chart. Typical measurements, dimensions in millimeters, cm. and images on scale for:
Rounds | Brilliant | Princess | Emerald | Pear | Oval | Heart | Trillion - Trilliant | Marquise | Radiant | Asscher | Cushion
How big are carat diamonds in size - Free Printable visual guide in tables for different shapes and respectable small, large or big stones.
View weight versus sizes of diamonds.
Approximate exact visual and printed sizes by screen size 1280 x 800 pixels
for the Popular Brilliant Shape Ideal Round Brilliant Diamond carat size comparison, images in millimeters, centimeters. Measurements can differ! Shallow cut have a greater size / diameter than a deep cut
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1/10
1/5
1/4
1/3
1/2
3/4
one 4/4
1 ¼
1 ½
1 ¾
two
2 ¼
2 ½
three
four
five
six
seven
eight
ten
fifteen
twenty
Each diamond has its own measurements.
Each diamond will differ from the standard millimeter dimension!
:How big is one carat - image
Compare size by shape and cut
Be aware: The diamond size is not the weight but it is the key to estimate the carat weight.
How to measure the size of a mounted diamond in setting, ring and jewelry
Round brilliant
Princess
Emerald
Pear
Oval
Heart
Marquise, navette
Radiant
Asscher
Cushion
Trillion trilliant
Compare specific brightness, appearance,
description and characteristics of Diamonds
in different shapes.
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This page was last updated on: November 4, 2018
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