Gold ring with diamonds surrounded by scattered diamonds on a beige background

Custom Stone Cutting

Loose diamonds supplied to your exact specification — whether you need stock shapes or a custom cut.

Designed your ring with AI? We'll supply the stones.

More people are designing their own jewellery using AI tools — and arriving with a precise specification in hand. We make it simple to go from design to real diamonds.

Share your stone requirements with us — shape, size, quantity, and quality — and we'll confirm availability and pricing, usually within 24 hours.

What we supply:

- Round, oval, pear, cushion, marquise, and other fancy shapes

- Natural and lab grown diamonds

- Coloured gemstone melee

- Matched parcels for pavé, halo, and channel settings

Silver loupe with a diamond on a white background

How it works

1. Share your design 

Send us your stone specifications — mm sizes, shapes, quantities, and any quality requirements. A screenshot or export from your AI design tool works perfectly.

2. We confirm availability & pricing 

We'll come back to you within 24 hours with what's available, pricing options, and any alternatives if needed.

3. Your stones are dispatched 

Once confirmed, your stones are carefully packed and dispatched — ready for your jeweller to set.

Need something we don't have?

Some designs call for a specific cut, proportion, or shape that standard stock can't match. Our custom stone cutting service lets you order diamonds and gemstones cut precisely to your requirements.

Custom cutting is available for:

- Unusual or non-standard shapes

- Specific mm dimensions outside standard sizing

- Bespoke fancy cuts for one-of-a-kind pieces

- Matched sets requiring precise consistency

Why The Carat Club

We supply premium natural and lab grown melee diamonds and gemstones to jewellers and private clients across the world. Every stone is carefully selected and graded — so whether you're ordering a single centre stone or a full pavé parcel, quality is consistent.

- Natural & lab grown diamonds

- Ethically sourced gemstones

- Trade and private client orders welcome

- UK-based, fast dispatch

Frequently asked questions

Can I order loose diamonds without being a jeweller?

How do I know what stones my design needs?

What's the difference between natural and lab-grown diamonds?

How long does custom cutting take?

Do you ship outside the UK?

Ready to order?

Tell us what you need and we'll take it from there.