4880 designs

Round Cut Diamonds

The round brilliant is the most researched shape in the world: 57 or 58 facets arranged over more than a century of optical refinement to return as much light to the eye as physically possible. It is the benchmark every other shape is measured against, and the one shape where cut grade is graded in full.

Because round stones are cut from the widest part of the rough, they carry a premium per carat — but they also hide colour and inclusions more forgivingly than any step cut. You can compare natural and lab-grown stones side by side here — chemically and optically identical, differing only in origin and price. Our lab-grown diamond guide explains how the two compare. Compare it with every other outline in our diamond shapes guide, and get to grips with what actually drives price in our diamond 4Cs guide. Each stone is independently graded and openly priced, ready to set into one of our settings or a piece designed from scratch with you.

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Not Quite the One?

If the Round Cut Diamonds ring you have in mind isn't shown here, we can design it with you — from first sketch to finished ring.