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
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?
Yes. We supply both trade accounts and private clients sourcing stones for their own designs.
How do I know what stones my design needs?
Most AI ring design tools output stone shapes and sizes in mm. If you're unsure, send us your design and we'll help you work out what you need.
What's the difference between natural and lab-grown diamonds?
Both are real diamonds with identical physical properties. Lab grown stones are typically more affordable, making them popular for melee-heavy designs. We supply both.
How long does custom cutting take?
Lead times vary depending on the specification but are approximately 3 weeks. Contact us for an estimate before ordering.
Do you ship outside the UK?
Yes we ship worldwide.
Ready to order?
Tell us what you need and we'll take it from there.