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Loose diamonds

Certified CVD lab grown diamonds.

Real diamonds, grown and graded to the highest standard. Tell us the shape, size and quality you need — we'll send you certified stones that match, with videos and prices.

  • IGI & GIA certified
  • Laser inscribed
  • Singles, pairs & parcels
Shop by shape

Every shape, grown to order.

Pick a shape to start your request — not sure about size? See them all at real scale in our size chart.

Diamond request

Tell us your perfect diamond.

Choose what matters to you — leave the rest open. Our team replies with certified options, usually within one business day.

ShapeAny
CaratAny

Tap one size, or two to choose a range.

ColourAny
ClarityAny
Certificate & quantity
Your detailsSo we can send your options

No obligation. We'll only use your details to reply to this request.

Your request is ready!

WhatsApp has opened with your details — just tap send.

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Why C6

Diamonds you can trust.

Independently certified

Graded by IGI and GIA, so every promise is on paper.

Laser inscribed

The report number on the girdle matches the certificate.

See before you buy

HD video of every stone, or view it live in our offices.

Trade pricing

Direct from the grower — for retailers and private clients.

What is CVD?

Grown atom by atom, graded like any diamond.

Chemical Vapour Deposition builds a diamond layer by layer from a carbon-rich gas onto a diamond seed. The result is a real diamond — chemically, physically and optically identical to a mined one.

  1. Seed in the chamberA thin diamond slice starts the crystal
  2. Carbon builds upLayer by layer, over several weeks
  3. Cut & polishedBy master cutters, like any rough diamond
  4. Certified & inscribedGraded on the 4Cs by IGI or GIA
Questions

Good to know.

More answers on our FAQ page →

CVD stands for Chemical Vapour Deposition — a method of growing a diamond layer by layer from a carbon-rich gas onto a diamond seed. The result is a real diamond with the same chemical, physical and optical properties as a mined one.

Yes. Our lab grown diamonds are independently graded by leading laboratories such as IGI and GIA, and larger stones are laser-inscribed with their report number.

Yes. Tell us the shape, carat, colour and clarity you want using the request form on this page, and our team will send you matching certified options with videos and prices.

Yes. We supply single stones, matched pairs and calibrated parcels to jewellers and retailers. Choose "Matched pair" or "Parcel" in the request form, or contact our team.

See them in person

View certified diamonds with an expert.