Cushion Cut Diamonds: Shape, Sparkle and Buying Checks

A cushion cut diamond has a square or rectangular outline with rounded corners. Two stones described as cushions can look noticeably different: one may have broad flashes of light, while another shows a finer pattern of sparkle. Seeing the actual diamond is more useful than choosing from the shape name alone.

Modern Cushions and Older Cuts

Cushion shapes have a connection to historic diamond cutting, but a modern cushion is not automatically an old mine cut. GIA's cushion cut guide explains that relationship. The stone's proportions, facets and other details help distinguish its cutting style.

Compare the Outline

Decide whether you prefer a squarer or more elongated shape. Compare actual measurements alongside carat weight, because weight does not tell you how much surface the diamond shows from above. There is no single ratio that suits everyone.

Watch the Light Move

View the diamond in more than one lighting environment and turn it slowly. Look for a pattern you enjoy across the whole stone. Descriptions such as crushed ice refer to appearance; they do not establish that one diamond is better than another.

Read the Details Beyond Shape

Confirm natural or laboratory grown origin and any disclosed treatments. Review the grading report when one is available and compare it with the actual stone. Do not assume the facet pattern hides every inclusion or that rounded corners make the diamond immune to chipping.

Choose a Suitable Setting

A solitaire emphasizes the outline, while a halo adds a separate border of stones. Neither changes the center diamond's carat weight. Check the setting height, prong condition, band width and fit with a future wedding band.

Browse our bridal selection or speak with our Boca Raton team about comparing cushion cut rings. The retained photographs include other ring shapes as general styling examples.