The natural round brilliant is the quintessential engagement ring diamond — the combination of geological rarity, unmatched brilliance, and timeless appeal. Formed over billions of years and cut to mathematical perfection, it is the choice for those who want nothing less than the original.

The round brilliant cut features 58 precisely arranged facets mathematically optimised to maximise light return, fire, and scintillation. Accounting for over 60% of all engagement rings sold worldwide, the round brilliant is the most researched and refined diamond shape in existence. Its symmetrical silhouette offers unmatched sparkle from every angle.

Warm, timeless, and universally flattering. 18K yellow gold contains 75% pure gold and has a rich, warm tone that has been the traditional choice for fine jewellery and engagement rings for centuries. Its natural colour will never fade or require re-plating.

At £3,500 you can choose a 1.5ct lab-grown diamond in a premium setting, or step into natural diamonds with a 0.7ct stone in solitaire or halo. A versatile budget that opens both paths.

Natural round diamonds command the highest per-carat price due to material loss during cutting and overwhelming demand.