Asscher Cut Solitaire Engagement Rings in 18K White Gold Under £4,000

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 Asscher cut is a square step-cut diamond with deeply cropped corners that create an almost octagonal outline. Its concentric square facets draw the eye deep into the stone, producing a mesmerising windmill pattern. Invented in 1902 by the Asscher Brothers, it remains one of the most distinctive and collectible diamond shapes.