Australia has a distinctive place in the global natural diamond industry, particularly because of its historic connection with the Argyle Diamond Mine in Western Australia. Although the Argyle mine is now closed, Australian buyers continue to have access to natural white, coloured, pink, and rare diamonds through specialist suppliers, wholesalers, manufacturers, and luxury jewellers.
Whether you are a jewellery designer, retailer, manufacturer, collector, or private client, choosing the right supplier involves more than price. Certification, provenance, sourcing expertise, matching capabilities, and bespoke services are important considerations.
Here are 10 natural diamond suppliers worth exploring in Australia, starting with Raremonds.
Best Natural Diamond Suppliers in Australia
1. Raremonds
Raremonds is a specialist natural diamond supplier serving jewellers, designers, collectors, private clients, and trade professionals worldwide, including Australia. The brand specializes in natural coloured diamonds, white diamonds, rare stones, special cuts, and precision-matched diamond layouts.
Raremonds offers:
- Natural white & coloured diamonds
- Yellow, Pink, Blue, Green, Violet & Orange diamonds
- Argyle & ultra-rare diamonds
- Fancy Light to Fancy Vivid and Fancy Deep diamonds
- Precision-matched pairs & layouts
- Special and designer cuts
- Custom-cut & made-to-spec diamonds
- Bespoke diamond & jewellery services
For Australian clients looking for rare coloured diamonds or highly specific diamond requirements, Raremonds provides a specialist sourcing approach rather than relying only on standard inventory.
2. All Diamonds Australia
All Diamonds is an Australian diamond supplier offering both natural and lab-grown diamonds across Australia. The company promotes wholesale-priced certified diamonds, including natural fancy colour diamonds and Argyle pink diamonds.
Highlights:
- Natural diamonds
- Fancy colour diamonds
- Argyle pink diamonds
- Certified loose diamonds
- Direct sourcing from cutters
- Melbourne showroom services
The company states that it works directly with cutter networks and supplies clients across Australia.
3. GS Diamonds
GS Diamonds is an established Australian diamond retailer with locations including Sydney and Brisbane. Its natural fancy coloured diamond collection includes a wide variety of colours and can be purchased as loose stones or incorporated into bespoke jewellery.
Highlights:
- Natural coloured diamonds
- Yellow, blue, orange, brown, grey, pink, green and other colours
- Loose diamonds
- Bespoke jewellery
- Sydney & Brisbane locations
- Custom design services
Its coloured diamond offering makes it a relevant option for Australian clients looking for natural fancy coloured stones.
4. Blumoon Diamond
Blumoon Diamond is an Australian diamond wholesaler supplying retailers, jewellers, and designers. The company is a family-owned business with international connections and provides access to a broad diamond inventory.
Highlights:
- GIA-certified natural diamonds
- Multiple shapes and sizes
- Natural coloured diamonds
- B2B wholesale supply
- Jewellery supply
- International sourcing network
Blumoon describes itself as an Australian-based supplier with offices and associated businesses across international diamond markets.
5. Carat Smart Australia
Carat Smart Australia is a Perth-based diamond manufacturer and wholesaler serving customers throughout Australia and New Zealand. The company states that it has more than 55 years of industry experience and maintains a broad inventory of loose natural diamonds.
Highlights:
- Natural loose diamonds
- GIA, IGI and HRD-certified diamonds
- Round and fancy shapes
- Wholesale supply
- Jewellery manufacturing
- Custom jewellery services
It also highlights ethically sourced and conflict-free diamonds in accordance with the Kimberley Process.
6. Argyle Jewellers
Argyle Jewellers has a strong connection with Australian natural diamonds, particularly Argyle diamonds and Australian pink diamonds. The company offers jewellery and loose stones associated with Australia’s famous Argyle diamond heritage.
Highlights:
- Australian natural diamonds
- Argyle pink diamonds
- Loose pink diamonds
- Argyle certification or lot documentation
- Custom jewellery
- Brisbane locations
Its Argyle collection includes diamonds accompanied by authenticity documentation and GIA certification where applicable.
7. Linneys Jewellery
Linneys is a Western Australian luxury jewellery house with a strong reputation for natural coloured diamonds, particularly Argyle pink diamonds. The company is recognized as an Argyle Pink Diamonds Select Atelier™ and offers both loose stones and bespoke jewellery.
Highlights:
- Natural Argyle pink diamonds
- Loose diamonds
- Bespoke jewellery
- High-jewellery expertise
- Western Australian heritage
- Rare coloured diamonds
Linneys describes its Argyle collection as one of Australia’s extensive selections of Argyle pink diamonds.
8. Mondial Jewellers
Mondial is an established Australian jewellery business known for fine jewellery, high jewellery, coloured gemstones, and natural diamonds. With a focus on luxury and craftsmanship, it offers bespoke jewellery services for clients seeking distinctive diamond pieces.
Highlights:
- Natural diamonds
- Fine jewellery
- Coloured gemstones
- Bespoke jewellery
- High-jewellery expertise
- Luxury craftsmanship
For private clients seeking natural diamonds as part of custom fine jewellery, Mondial is a supplier worth exploring.
9. Calleija Jewellers
Calleija is an Australian luxury jewellery house recognized for high jewellery, exceptional gemstones, and bespoke creations. The company works with natural diamonds and rare gemstones for clients seeking highly distinctive jewellery.
Highlights:
- Natural diamonds
- Rare gemstones
- High jewellery
- Bespoke jewellery
- Custom design
- Luxury craftsmanship
Its focus is particularly relevant for private clients and collectors searching for exceptional natural stones and individually crafted jewellery.
10. Michael Hill
Michael Hill is an established Australian jewellery brand with a significant retail network across Australia and other international markets. The company offers natural diamond jewellery across engagement, wedding, and fine jewellery categories.
Highlights:
- Natural diamond jewellery
- Engagement rings
- Wedding jewellery
- Fine jewellery
- Australian retail network
- Custom jewellery options
For consumers looking for a well-established Australian jewellery retailer, Michael Hill provides broad access to diamond jewellery.
Why Choose Raremonds for Natural Diamonds in Australia?
Australian buyers have access to many diamond suppliers, but sourcing an exceptional natural diamond can become considerably more complicated when the requirement involves rare colour, unusual shape, matching, specific dimensions, or bespoke high-jewellery design.
This is where Raremonds takes a more specialist approach.
15+ Years of Natural Coloured Diamond Expertise
Raremonds brings more than 15 years of expertise in natural fancy coloured diamonds, led by Parth Shah. His experience includes working within the natural coloured diamond market and participating in major international trade shows.
This specialist experience helps clients understand the subtle differences between diamonds that may appear similar on a certificate but perform differently visually.
A Full Spectrum of Natural Coloured Diamonds
Raremonds specializes in natural coloured diamonds across a broad colour spectrum, including:
- Yellow
- Pink
- Blue
- Green
- Violet
- Orange
- Argyle
Diamonds can be sourced across intensity levels such as Fancy Light, Fancy, Fancy Vivid, and Fancy Deep, subject to availability.
For Australian buyers interested in rare coloured diamonds, this specialist focus is particularly valuable because colour, saturation, tone, undertones, shape, rarity, and origin can all influence a stone’s character and value.
Evaluation Beyond the Certificate
A laboratory certificate provides important grading information, but it does not describe every visual characteristic that can influence the appearance of a diamond.
Raremonds inspects stones under loupe and microscope and evaluates factors including:
- Fluorescence haze
- Bow-tie effect
- Uneven colour distribution
- Saturation consistency
- Overall visual performance
This additional layer of evaluation helps clients make more informed sourcing decisions.
Precision-Matched Natural Diamonds
Matching diamonds for jewellery is one of the most demanding areas of diamond sourcing.
Raremonds specializes in finding diamonds that work together across:
- Colour
- Saturation
- Tone
- Dimensions
- Proportions
- Overall appearance
This is particularly useful for earrings, bracelets, multi-stone rings, and high-jewellery layouts.
Where necessary, the company also offers recut-to-match capabilities to improve consistency across a set.
Special Cuts and Designer Shapes
Raremonds has expertise in sourcing special cuts that may not be readily available through conventional diamond inventories.
These include:
- Old Mine Cuts
- Old European Cuts
- Rose Cuts
- Half-Moons
- Trapezoids
- Baguettes
- Shields
- Hexagons
- Cadillacs
- Kites
- Epaulets
- Trilliants
- Briolettes
For designers working with precise measurements or unusual jewellery layouts, these capabilities can make a significant difference.
Argyle and Ultra-Rare Diamonds
Australia has an extraordinary connection to Argyle diamonds, particularly rare pink diamonds. Since the closure of the Argyle mine, stones with genuine Argyle provenance have become increasingly scarce.
Raremonds specializes in Argyle and ultra-rare natural diamonds, providing clients with access to exceptional stones when available.
Ethical and Traceable Sourcing
For Australian jewellers and private buyers, provenance and responsible sourcing are important considerations.
Raremonds provides GIA Origin Certification where available and non-Russian provenance documentation for clients who require additional documentation for compliance purposes.
This creates greater transparency around the sourcing history of natural diamonds.
Bespoke Diamond Sourcing
Sometimes the ideal diamond simply cannot be found through standard online inventory.
A designer may need:
- A particular colour
- Exact millimeter measurements
- A specific shape
- A particular intensity
- Matching stones
- A custom layout
- A particular carat range
Raremonds provides custom sourcing, custom cutting, matching, calibrated layouts, and made-to-spec diamond programs to meet these requirements.
Bespoke Jewellery Manufacturing
Raremonds goes beyond loose diamond supply by offering bespoke jewellery manufacturing for private clients, boutique brands, collectors, and trade professionals.
Services can include:
- Custom jewellery manufacturing
- High-jewellery production
- White-label manufacturing
- Design-to-production execution
- Bespoke diamond jewellery
This gives Australian clients the opportunity to work with one specialist partner for both diamond sourcing and jewellery production.
Final Thoughts
Australia has a unique natural diamond market shaped by its history with the Argyle mine and its strong network of jewellery businesses, wholesalers, manufacturers, and luxury jewellers.
When choosing among the best natural diamond suppliers in Australia, buyers should consider more than price. Certification, provenance, sourcing expertise, visual evaluation, matching capabilities, and bespoke services can be equally important.
For buyers searching for natural coloured diamonds, rare Argyle diamonds, special cuts, precision-matched layouts, or made-to-spec diamonds, Raremonds offers a specialist sourcing approach backed by more than 15 years of natural coloured diamond expertise.
Frequently Asked Questions
1. Who are the best natural diamond suppliers in Australia?
Some notable suppliers include Raremonds, All Diamonds Australia, GS Diamonds, Blumoon Diamond, Carat Smart Australia, Argyle Jewellers, Linneys Jewellery, Mondial, Calleija, and Michael Hill. The right supplier depends on whether you need loose diamonds, coloured diamonds, wholesale supply, or bespoke jewellery.
2. Where can I buy natural coloured diamonds in Australia?
Natural coloured diamonds are available through specialist suppliers and jewellers in cities including Sydney, Brisbane, Melbourne, and Perth. GS Diamonds, Argyle Jewellers, Linneys, and Raremonds are options worth exploring depending on the type of coloured diamond required.
3. Are Argyle diamonds still available in Australia?
Yes, genuine Argyle diamonds continue to exist in the secondary market and through specialist dealers and jewellers. The Argyle mine itself is closed, making documented Argyle stones particularly sought after.
4. Can Raremonds supply natural diamonds to Australia?
Yes. Raremonds works with jewellers, designers, private clients, collectors, and trade professionals worldwide, including Australia, and provides natural coloured, white, rare, and special-cut diamonds.
5. Can I source matched or custom-cut natural diamonds?
Yes. Raremonds specializes in precision-matched pairs, calibrated layouts, custom cutting, and made-to-spec natural diamonds, making it suitable for jewellery designs requiring specific measurements, colour, saturation, or proportions.
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