Black Natural Diamonds

Natural black diamonds take their opacity from graphite inclusions packed densely enough to stop light passing through. Untreated stones are considerably scarcer than the heat-treated ones that dominate the market.

Stones like these are graded on character rather than clarity, so choose with your eyes rather than the certificate. These are natural stones, formed over billions of years and mined under traceable, conflict-free supply chains. Read what makes a diamond ethical before you choose. They set beautifully in rubover and claw settings, and pair strikingly with white metals. Our diamond 4Cs guide covers the wider picture. Every stone is independently certified, priced transparently, and can be set into any ring in our collection or into a design of your own.

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Bespoke Design

Not Quite the One?

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