Clean Diamonds.
What if your diamond could
heal the planet?
Grown by world leading engineers, our diamonds are the result of a revolutionary process that captures carbon from our air.
Powered by 100% renewable energy and reactor technology that is over 95% efficient, this is the most ethical diamond that has ever been produced on Earth.
Carbon Neutral VS Negative
Most lab diamonds carry a hidden carbon debt, meaning emissions created during production are balanced through offsets or sustainability investments. Our diamonds carry a carbon credit. By switching to a Cornish supply chain, you aren't just hitting ESG targets, you’re setting the industry benchmark.
Provide your clients with the only diamond that leaves the atmosphere cleaner than it found it.
- 100% British.
- 0% Carbon.
- 100% Traceable.
Our Non-Negotiables
| What Others Do | What We Do Different |
|---|---|
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Source from coal-powered grids
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100% green energy
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Leaked Carbon Emissions
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Carbon Removal
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Relies on Carbon Offsets
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Carbon Negative by Design
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Shipped from India & Asia
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Produced Locally
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Limited Transparency on Origin
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100% Traceable UK Provenance
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How It Works: The C- Process
Through our advanced proprietary MCVD process, our diamonds are grown using 100% renewable energy within a closed-loop production system designed to maximise purity, precision and efficiency.
Unlike mass-produced stones reliant on fossil fuel powered manufacturing, using outdated inefficient reactors, every diamond is crafted under our exclusive C-® Standard, a mark of exceptional provenance, innovation & next-generation luxury.
Join a community where luxury doesn't cost the planet. Diamonds of Cornwall are ushering a new age of sustainability with our C- Diamonds. We believe that true luxury meanscaring for the world we share.
Register your interest
Be among the first to discover Diamonds of Cornwall. Access our exclusive brochure and explore partnership opportunities behind the world’s first Carbon Negative diamonds.