Marquise Solitaire Engagement Rings in 18K White Gold Under £3,500

White gold solitaire delivers the same bright, modern look as platinum in a lighter, more affordable package. The neutral white metal lets the diamond take centre stage while the 18k gold ensures lasting quality.

The marquise cut features a distinctive elongated shape with pointed ends, offering the largest face-up area of any diamond shape for its carat weight. Its boat-like silhouette creates a dramatic, regal presence on the finger and makes the stone appear significantly larger than other shapes of the same weight.