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Radiant Cut Diamond Size Chart (MM)

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

Radiant Diamond Size Chart

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Radiant Diamond Sizes

Radiant MM
Size		 Radiant Weight
(ct)		 Black Diamond ct
weight (Approx)		 Radiant MM
Size 		Radiant Weight
(ct) 		Black Diamond ct
weight (Approx)
5x3 mm. 0.31 0.40 10x8 mm. 3.50 4.90
4.5x3.5 mm. 0.34 0.44 11x9 mm. 5.05 7.10
6x3 mm. 0.41 0.53 12x9 mm. 6.06 8.50
6x4 mm. 0.50 0.65 11.5x10 mm. 6.45 9.10
6.5x4.5 mm. 0.75 1.00 13x9 mm. 6.54 9.20
7x5 mm. 1.00 1.40 12x10 mm. 6.79 9.60
7.3x5.5 mm. 1.25 1.80 14x10 mm. 8.47 11.90
7.5x5.8 mm. 1.50 2.10 13x11 mm. 9.33 13.10
8x6 mm. 2.00 2.80 13.5x11.5 mm. 10.19 14.30
8.5x6.5 mm. 2.25 3.20 15x11 mm. 11.48 16.10
9x7 mm. 2.50 3.50 14x12 mm. 12.14 17.00
9.5x7.5 mm. 3.00 4.20 16x12 mm. 14.22 20.00
10x7 mm. 3.31 4.70