What is an Elongated Cushion Cut Diamond?

August 5, 2025

Model wearing the Melanie Casey Snowdrift Bezel Set Ring with a Cushion Cut center stone.

A cushion cut diamond combines soft, curved corners with straight edges. The name “cushion” comes from the diamond’s shape, which resembles a pillow with its rounded corners. Cushion cut engagement rings exhibit a lot of sparkle, much like the round brilliant cut diamond, the oval cut diamond, or the marquise diamond.

A cushion cut diamond can be more square or more rectangular, depending on the diamond’s length-to-width ratio. An elongated cushion cut has a longer length than width, providing the rectangular shape of an emerald cut diamond without sacrificing brilliant sparkle.

Model wearing the Melanie Casey Windlass Ring with a Cushion Cut center stone.

Why Choose an Elongated Cushion Cut?

Model wearing the Melanie Casey Whisper Ring with a Cushion Cut center stone.

Elongated cushion cut engagement rings are a perfect choice for the bride who wants something romantic and timeless, but also contemporary and unique. Like an oval cut, the elongated cushion cut diamond ring stretches the diamond’s carat weight, causing it to elongate your finger. The gentle curves at each corner soften sharpness and resemble the fan-favorite oval cut while maintaining solid edges.

This is also the perfect cut for a bride who loves sparkle, with some believing the cushion cut diamond sparkles the brightest and hides imperfections better than any other diamond cut. The many facets of an elongated cushion cut help color pop, meaning this cut works perfectly in colored diamond engagement rings and sapphire engagement rings.

Model wearing the Melanie Casey Myriad Ring with a Cushion Cut center stone.

Founder and designer Melanie Casey makes it easy to select an elongated cushion cut diamond for your engagement ring with our extensive collection of Choose Your Diamond engagement rings. Explore some of Melanie’s favorite elongated cushion cut engagement rings from our collection and get insider tips about selecting the perfect elongated cushion cut diamond in the coming pages.

See Our Top Elongated Cushion Cut Engagement Rings