Cushion Cut Diamond Size Chart (MM)

Wondering what a 1 carat Cushion diamond looks link on a hand? Our round diamond size chart will help you convert millimeter (mm) size to carat size for Cushion cut diamonds.

Cushion black diamond size chart

 


Cushion Diamond Sizes

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Cushion MM
Size
Cushion Weight
(ct)
Black Diamond ct
weight (Approx)
4.2 mm. 0.40 0.52
4.9 mm. 0.50 0.65
5.25 mm. 0.75 1.00
5.5 mm. 1.00 1.40
6 mm. 1.25 1.80
6.5 mm. 1.50 2.10
7 mm. 2.00 2.80
7.5 mm. 2.50 3.50
Cushion MM
Size
Cushion Weight
(ct)
Black Diamond ct
weight (Approx)
8 mm. 3.00 4.20
8.5 mm. 3.50 4.90
9 mm. 4.12 5.80
9.5 mm. 5.09 7.20
10 mm. 5.62 7.90
11 mm. 7.44 10.50
12 mm. 9.52 13.40
13 mm. 12.66 17.80

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