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Cushion Cut Diamond Size Chart (MM)

See how cushion cut diamonds measure in millimeters at various carat weights, making it easier to select the ideal size for your ring.

size chart

Round Cut Diamond SizesCushion Cut Diamond Sizes

Cushion MM SizeCushion Carat Weight
4.2 mm.0.40 ct.
4.9 mm.0.50 ct.
5.25 mm.0.75 ct.
5.5 mm.1.00 ct.
6 mm.1.25 ct.
6.5 mm.1.50 ct.
7 mm.2.00 ct.
7.5 mm.2.50 ct.
Cushion MM SizeCushion Carat Weight
8 mm.3.00 ct.
8.5 mm.3.50 ct.
9 mm.4.12 ct.
9.5 mm.5.09 ct.
10 mm.5.62 ct.
11 mm.7.44 ct.
12 mm.9.52 ct.
13 mm.12.66 ct.

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