Radiant Cut Lab-Grown Diamond Solitaire Engagement Rings in 18K White Gold Under £4,000

A lab-grown solitaire is the purest expression of modern engagement ring design — timeless simplicity with intelligent value. The solitaire setting puts all focus on the diamond, and lab-grown savings let you choose a larger, higher-quality centre stone.

The radiant cut combines the elegant shape of an emerald with the brilliant-cut faceting of a round, producing exceptional fire in a rectangular or square silhouette. Its cropped corners give it a distinctive look that is both modern and versatile, while its faceting pattern hides inclusions well.