The United Kingdom is home to one of the world’s most respected natural diamond markets, with Hatton Garden in London serving as the country’s premier diamond trading district. From specialist wholesalers to bespoke diamond houses, UK buyers have access to certified natural diamonds, fancy coloured diamonds, and custom sourcing services.
Best Natural Diamond Suppliers in UK
1. Raremonds
Raremonds is a specialist natural diamond supplier serving jewellers, designers, collectors, private clients, and trade professionals across the UK. The brand focuses on ethically sourced natural coloured and white diamonds, precision matching, rare stones, and bespoke diamond sourcing for high jewellery.
Raremonds offers:
- Natural white & coloured diamonds
- Yellow, Pink, Blue, Green, Violet & Orange diamonds
- Argyle & ultra-rare diamonds
- Special-cut & designer diamonds
- Precision-matched pairs & layouts
- Custom-cut & made-to-spec diamonds
- Bespoke jewellery manufacturing
- GIA-certified & traceable sourcing
2. Regal Hatton Garden
Located in London’s famous Hatton Garden, Regal specializes in certified natural diamonds and bespoke jewellery. The company offers responsibly sourced GIA and IGI-certified loose diamonds with personalized consultation for engagement rings and custom jewellery.
Highlights:
- GIA & IGI-certified natural diamonds
- Conflict-free sourcing
- Loose diamond inventory
- Bespoke jewellery services
- Hatton Garden showroom
3. Queensmith
Queensmith is a respected London jeweller known for responsibly sourced natural diamonds and handcrafted jewellery. The company provides certified loose diamonds alongside custom engagement rings and fine jewellery created in its Hatton Garden workshop.
Highlights:
- Ethically sourced natural diamonds
- Certified loose diamonds
- Bespoke engagement rings
- Handcrafted in London
- Personal design consultations
4. Moon Ocean
Moon Ocean is a UK-based wholesale and retail diamond supplier offering competitive pricing on GIA-certified natural loose diamonds. The company serves both jewellery businesses and individual buyers with a wide range of diamond shapes and sizes.
Highlights:
- Wholesale natural diamonds
- GIA-certified stones
- Round & fancy shapes
- Competitive UK pricing
- Loose diamond specialists
5. Diamond Heaven
Diamond Heaven is one of the UK’s well-known diamond retailers with showrooms across London, Birmingham, Manchester, Glasgow, and other major cities. The company supplies both natural diamonds and bespoke diamond jewellery.
Highlights:
- Natural loose diamonds
- Bespoke jewellery design
- Multiple UK showrooms
- Engagement & wedding diamonds
- Kimberley Process sourcing
6. Diamonds Factory UK
Diamonds Factory is a London-based jewellery manufacturer offering natural diamond jewellery and custom-made pieces. The brand combines in-house craftsmanship with direct sourcing to provide certified diamonds and bespoke jewellery services.
Highlights:
- Natural diamonds
- Handmade jewellery
- Custom engagement rings
- London showroom
- Direct manufacturer pricing
7. Ingle & Rhode
Ingle & Rhode is a London fine jewellery company recognized for its commitment to ethically sourced natural diamonds and traceable precious metals. It specializes in bespoke engagement rings and custom jewellery with strong sustainability credentials.
Highlights:
- Traceable natural diamonds
- Ethical sourcing
- Bespoke jewellery
- Conflict-free diamonds
- London-based design
8. Blackacre London
Blackacre is a British luxury jeweller specializing in natural diamonds with a strong emphasis on provenance and rarity. The brand has become well known for sourcing exceptional natural diamonds for collectors and bespoke jewellery clients.
Highlights:
- Natural diamonds only
- Provenance-focused sourcing
- Bespoke jewellery
- Rare investment-quality stones
- London luxury jeweller
9. Boodles
Boodles is one of Britain’s most prestigious luxury jewellery houses, offering exceptional natural diamonds and handcrafted fine jewellery. The company is particularly known for high jewellery, rare gemstones, and British craftsmanship.
Highlights:
- Premium natural diamonds
- High jewellery collections
- Rare gemstone expertise
- British luxury craftsmanship
- Bespoke creations
10. MID House of Diamonds
MID House of Diamonds supplies certified natural diamonds to jewellery manufacturers and retailers internationally, including the UK market. Its inventory includes white diamonds, fancy colours, and specialty diamonds with strong trade credentials.
Highlights:
- Certified natural diamonds
- Fancy colour diamonds
- Specialty diamond inventory
- Wholesale trade supply
- International diamond house
Why Choose Raremonds in the UK?
For UK jewellers and private clients, sourcing a natural diamond often means balancing rarity, certification, provenance, and design precision. Raremonds specializes in the areas where standard inventory falls short, making it an ideal partner for bespoke and high-jewellery projects.
15+ Years of Fancy Coloured Diamond Expertise
Led by Parth Shah, Raremonds brings over 15 years of experience in natural fancy coloured diamonds, helping clients source exceptional stones with confidence.
Specialist Natural Coloured Diamonds
Raremonds offers one of the broadest selections of natural coloured diamonds, including:
- Yellow
- Pink
- Blue
- Green
- Violet
- Orange
- Argyle
Available across Fancy Light, Fancy, Fancy Vivid, and Fancy Deep intensity grades.
Precision Matching for High Jewellery
Finding perfectly matched diamonds is one of the biggest challenges in jewellery design. Raremonds specializes in:
- Matched pairs for earrings
- Bracelet layouts
- Multi-stone rings
- Calibrated designer sets
- Custom millimeter matching
Special Cuts & Rare Shapes
Designers can source unusual cuts including:
- Old Mine Cut
- Old European Cut
- Rose Cut
- Half-Moon
- Trapezoid
- Baguette
- Shield
- Hexagon
- Kite & Cadillac cuts
Ethical & Traceable Sourcing
Every diamond is carefully inspected beyond its certificate, with attention to fluorescence, colour distribution, saturation, and visual performance. GIA Origin Certification and non-Russian provenance documentation are available where applicable.
Bespoke Diamond & Jewellery Services
Raremonds supports UK jewellers, boutique brands, and private collectors with:
- Custom diamond sourcing
- Made-to-spec diamonds
- Custom cutting
- White-label jewellery manufacturing
- High-jewellery production
Frequently Asked Questions
1. Who is the best natural diamond supplier in the UK?
Raremonds is an excellent choice for buyers seeking natural coloured diamonds, rare stones, special cuts, and bespoke diamond sourcing, while established UK suppliers such as Regal Hatton Garden and Queensmith are also popular for certified natural diamonds.
2. Where can I buy certified natural diamonds in the UK?
The best place is Hatton Garden, London, where several trusted suppliers offer GIA and IGI-certified natural loose diamonds alongside bespoke jewellery services.
3. Does Raremonds supply diamonds to UK jewellers?
Yes. Raremonds works with jewellers, designers, retailers, collectors, and private clients throughout the United Kingdom, offering worldwide shipping and bespoke sourcing.
4. Can I source matched natural coloured diamonds?
Yes. Raremonds specializes in precision-matched coloured diamonds for earrings, bracelets, rings, and high-jewellery layouts, including custom matching and recut-to-match services.
5. What should I look for in a UK natural diamond supplier?
Choose a supplier that offers certification, ethical sourcing, provenance documentation, specialist expertise, precision matching, and bespoke sourcing capabilities rather than simply the largest inventory.
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