Collection: Radiant Cut Diamond Engagement Rings

A radiant cut diamond engagement ring delivers the best of two worlds — the step-cut silhouette of an emerald cut with the brilliant-cut fire of a round diamond. The radiant cut was the first rectangular diamond cut to feature a full brilliant-cut facet pattern on both the crown and pavilion, and the result is a stone that blazes with light from every angle while sitting inside a clean, architectural rectangular outline. It is at once bold and brilliant, modern and timeless.
Our radiant cut diamond engagement rings collection covers every variation that matters. The elongated radiant cut engagement ring is our most popular style — the longer rectangular outline maximises finger coverage and apparent stone size in a way that rivals the oval for finger-flattering impact. The square radiant cut sits in the same visual space as a cushion cut but with sharper, more defined corners and greater brilliance. Both are available in natural and lab grown diamond across every setting style.
Browse radiant cut diamond solitaire engagement rings for clean, uninterrupted brilliance; radiant cut halo engagement rings for maximum sparkle and apparent size; hidden halo radiant engagement rings for contemporary sophistication; and three stone radiant cut engagement rings for meaning alongside brilliance. The full collection spans every carat weight from one carat to eight carats and above, in 14k and 18k yellow gold, white gold, rose gold, and platinum, with full IGI or GIA certification and free worldwide shipping.