About The Carat Club
The Carat Club is a UK-based supplier of GIA certified natural diamonds, IGI certified lab grown diamonds, natural and lab grown melee, matched pairs and coloured gemstone melee, serving jewellers, jewellery designers and bespoke jewellery clients worldwide.
Every diamond is sourced from trusted suppliers, professionally graded where applicable, and selected to meet the high standards expected by today's jewellery industry.
Our Story
The Carat Club was founded with one goal: to simplify diamond sourcing.
Finding the right diamonds shouldn't involve endless emails, phone calls or uncertain pricing. We built a straightforward online experience where jewellers, designers and private clients can browse, compare and purchase premium diamonds with confidence.
From precision-calibrated melee to certified centre stones and perfectly matched pairs, every product has been selected to deliver outstanding quality, consistency and value.
Our Collection
Whether you're sourcing a single diamond or purchasing for ongoing production, our range includes:
- GIA certified natural diamonds
- IGI certified lab grown diamonds
- Natural diamond melee
- Lab grown diamond melee
- Fancy colour lab grown melee
- Natural matched pairs
- Lab grown matched pairs
- Coloured gemstone melee
Every product is carefully inspected to ensure consistent quality, accurate sizing and excellent value.
Premium Calibrated Melee Without Minimum Orders
No minimum orders & transparent pricing
Whether you need a single parcel or larger production quantities, we make sourcing natural and lab grown melee straightforward.
Our calibrated melee is precision sorted for consistent sizing and reliable setting, with transparent pricing and fast dispatch helping you spend less time sourcing and more time creating beautiful jewellery
Diamonds, Delivered Fast
Pick your perfect diamonds in just a few clicks
Browse GIA certified natural diamonds, IGI certified lab grown diamonds, matched pairs and calibrated melee online.
Forget lengthy quotation requests and time-consuming sourcing. Select your diamonds, place your order and receive your stones quickly with secure worldwide shipping.
Responsible Sourcing
Ethically sourced with complete confidence
We believe exceptional diamonds should also be responsibly sourced.
Every natural diamond we supply originates from trusted suppliers who adhere to the Kimberley Process, helping prevent the trade of conflict diamonds.
We work exclusively with reputable, transparent suppliers who share our commitment to ethical sourcing, quality and integrity.
Why Jewellers Choose The Carat Club
We combine the quality expected from traditional diamond merchants with the convenience of modern online purchasing.
Our customers choose us because we offer:
- No minimum order quantities
- Competitive pricing
- Fast worldwide shipping
- Secure online ordering
- GIA certified natural diamonds
- IGI certified lab grown diamonds
- Precision-calibrated melee
- Carefully matched pairs
- Coloured gemstone melee
- Responsive customer support
- Consistent quality control
- Trusted sourcing
Whether you're purchasing a single diamond or sourcing stones for ongoing production, we're committed to making every order simple and reliable.
Supporting Every Jewellery Project
Our customers include:
- Independent jewellers
- Jewellery designers
- Jewellery manufacturers
- Retail jewellers
- Repair workshops
- Bespoke engagement ring specialists
- Fine jewellery brands
- Private clients
From replacing a missing melee diamond to sourcing the perfect centre stone for a one-of-a-kind engagement ring, we're here to help bring every project to life.
Worldwide Supply
Although proudly based in the United Kingdom, The Carat Club supplies customers around the world.
Our secure online platform allows customers to browse our growing collection of natural diamonds, lab grown diamonds and coloured gemstones at any time, with reliable international shipping available to most destinations.
Whether you're an established jewellery business or purchasing for a bespoke commission, we provide the same exceptional service and attention to detail.
Our Promise
At The Carat Club, we believe buying diamonds should be straightforward.
We focus on exceptional quality, honest pricing, ethical sourcing and outstanding customer service, giving jewellers and jewellery designers confidence in every purchase.
From certified centre stones to calibrated melee and matched pairs, every diamond we sell is selected with care and backed by our commitment to quality.
