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Radiant Cut Diamond Size Chart (MM)

Review radiant diamond size charts by carat weight to see how each option will shine and fit beautifully in your chosen setting.

size chart

Round Cut Diamond SizesRadiant Cut Diamond Sizes

Radiant MM SizeRadiant Carat Weight
5x3 mm.0.31 ct.
4.5x3.5 mm.0.34 ct.
6x3 mm.0.41 ct.
6x4 mm.0.50 ct.
6.5x4.5 mm.0.75 ct.
7x5 mm.1.00 ct.
7.3x5.5 mm.1.25 ct.
7.5x5.8 mm.1.50 ct.
8x6 mm.2.00 ct.
8.5x6.5 mm.2.25 ct.
9x7 mm.2.50 ct.
9.5x7.5 mm.3.00 ct.
10x7 mm.3.31 ct.
Radiant MM SizeRadiant Carat Weight
10x8 mm.3.50 ct.
11x9 mm.5.05 ct.
12x9 mm.6.06 ct.
11.5x10 mm.6.45 ct.
13x9 mm.6.54 ct.
12x10 mm.6.79 ct.
14x10 mm.8.47 ct.
13x11 mm.9.33 ct.
13.5x11.5 mm.10.19 ct.
15x11 mm.11.48 ct.
14x12 mm.12.14 ct.
16x12 mm.14.22 ct.

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