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.

An engagement ring does not need to cost a fortune to be meaningful. Under £1,000, lab-grown diamond rings offer genuine sparkle and certified quality at an accessible price. At MOH, every ring in this range is handcrafted in Hatton Garden with the same care as our most expensive pieces.

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