Heart Cut Diamond Size Chart (MM)

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

Heart black diamond size chart

 


Heart Diamond Sizes

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Heart MM
Size
Heart Weight
(ct)
Black Diamond ct
weight (Approx)
3.5 mm. 0.18 0.22
4 mm. 0.25 0.30
4.25 mm. 0.28 0.34
4.5 mm. 0.34 0.41
4.75 mm. 0.38 0.46
5 mm. 0.50 0.65
5.5 mm. 0.61 0.79
6 mm. 0.75 1.00
6.25 mm. 0.83 1.10
6.5 mm. 1.00 1.40
7 mm. 1.25 1.80
7.5 mm. 1.50 2.10
Heart MM
Size
Heart Weight
(ct)
Black Diamond ct
weight (Approx)
8 mm. 2.00 2.80
8.5 mm. 2.50 3.50
9 mm. 3.00 4.20
10 mm. 3.50 4.90
11 mm. 4.41 6.20
12 mm. 5.66 8.00
13 mm. 7.88 11.10
14 mm. 9.38 13.20
15 mm. 10.79 15.20
16 mm. 13.27 18.60
18 mm. 15.33 21.50

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