150 Ashley Road, Hale,

Cheshire, WA15 9SA

0161 233 9977


Third Floor, St Johns Court, 19B Quay Street,

Manchester, M3 3HN

0800 080 3535


5 St Christopher’s Pl, Marylebone,

London, W1U 1NA

020 33 271 271

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Cushion Cut Diamonds Guide

Learn more about the cushion cut diamond - the classical choice for vintage diamond engagement rings.

Cushion Cut Diamond Shape

The cushion cut diamond is square with rounded corners – a classical, vintage engagement diamond ring shape, which has been around for more than 200 years.

It typically consists of 58 facets and although it’s not as fiery as brilliant cut diamonds, its larger facets result in dramatic flashes of white light and spectral colours.

To get the perfect square shape for your diamond engagement ring, we recommend a length to width ratio between 1.00 to 1.15.

Due to the larger facets, inclusions or marks may be slightly more visible, so opt for the highest clarity and colour grades possible. Before you shop for cushion cut diamonds, think about what width to length ratio you prefer – cushion cut diamonds come in all sizes and shapes.

Diamond Ratio

These are the recommended ratios, table% and depth% for round brilliant cut diamonds.

Shape Length To Width Ratio Table% Depth%
Cushion 1 To 1.15 50% – 60% 58% – 68%