Own a Certified Natural Pink Diamond From Australia's Closed Argyle Mine
For 37 years, the Argyle mine in Western Australia produced over 90% of the world's natural pink diamonds. In November 2020, the mine closed forever. No new Argyle diamonds will ever be mined.
We serve private collectors, family offices, and sovereign wealth buyers across Asia, the Middle East, and Australia. Inspect our live vault ledger below, verify original GIA and Argyle certificates, and acquire for private vaulting, bespoke high jewellery, or Australian SMSF custody.
How to Select the Right Argyle Diamond
Argyle colour grading follows an exact numerical scale. Here is how colour depth, undertone, and certificate tiers are structured:
Numbers 1 to 9 Measure Saturation
Argyle grades colour depth from 1 (deepest vivid pink) to 9 (soft blush pink). Grades 1 to 3 represent apex collector gems, 4 to 5 are rich classic pinks, and 6 to 9 are soft pastel tones. PP denotes coveted Purplish Pink undertones.
Colour Dominates Weight & Shape
Natural pink diamonds are infinitely rarer than white diamonds. Most Argyle stones weigh between 0.10ct and 0.45ct, with 0.50ct+ marking elite thresholds. Saturated colour depth drives 90% of value across brilliant and fancy cuts.
Inspect Certificate, Reserve, or Inquire
Consult Claire on any diamond card for certificate details, colour guidance, or global vault delivery. Request a quote or reserve a stone on a 7-day vault hold (secured with a fully refundable 10% deposit) while reviewing unredacted Argyle lot records.
Find your diamond
More filters size, shape, clarity, paperwork
Featured Vault Release: 0.14ct Argyle 4PR Oval (Vault Ref PCD-V001)
Inspect our complete public specimen showcase: a 0.14ct Fancy Intense Pink Oval diamond accompanied by its original Argyle Certificate and independent certified valuation, offered at $35,200 AUD.
Inspect Featured 0.14ct Oval Diamond →Personal Portfolio Selection: Custom Shortlist from Current Vault Holdings
Specify your acquisition criteria, desired budget, and target holding objective (private family vaulting, bespoke high jewellery, or SMSF allocation). Jonathan and Claire will curate a bespoke 3-stone shortlist with complete Argyle certificates and valuations.
Get a Personal 3-Stone Shortlist →Why Natural Argyle Pink Diamonds Cannot Be Replaced
Unlike gold or white diamonds, where new mines open every decade, natural Australian Argyle pink diamonds come from a single geological pipe that is now permanently shut.
Rio Tinto permanently ceased mining operations at the East Kimberley AK1 pipe in November 2020.
Fewer than 1 in every 1,000 carats extracted from the Argyle mine was classified as pink rough.
No other geological discovery in recorded history has ever matched Argyle's saturation depth.
Certified stones feature microscopic girdle laser inscriptions matching official mine archives.
Research Guides on Colour Grading, Provenance & Valuation
Authoritative research and verified market data for international collectors, family offices, and sovereign vault buyers.
1. Complete Buyer's Overview
How certified natural pink diamonds operate as sovereign tangible stores of wealth, what drives price, and how to buy safely.
2. How Pink Colour Grades Work
Detailed visual reference breakdown across Purplish Pink, Pink, Rose, Champagne, and rare Blue-Violet grading categories.
3. Buying Inside an Australian SMSF
Statutory compliance protocol for loose diamonds in an Australian SMSF under SIS Reg 13.18AA and ATO Determination TD 2023/3.
4. Argyle Certificate vs. GIA Origin
Crucial differences between original Rio Tinto Argyle Lot certificates with laser inscriptions and standard GIA origin reports.
5. How Pink Diamonds Are Priced
Why colour saturation drives 90% of diamond value, how carat weight acts as a multiplier, and how clarity and shape factor.
6. How Buying & Vault Delivery Work
Walkthrough of our fiduciary process: provenance verification, 7-day vault holds (10% refundable deposit), and insured armoured vault delivery.
7. 5 Mistakes Buyers Should Avoid
How to avoid uncertified stones, retail high-street markups, synthetic lab-grown material, and SMSF custody violations.
8. Rare Argyle Red & Blue Diamonds
Why Argyle Fancy Red diamonds and Type IA hydrogen-coloured Blue/Violet diamonds are the rarest tangible gems on Earth.
Get One Rare Argyle Pink Diamond in Your Inbox Each Tuesday
Once a week, Claire sends a short market note and one standout Argyle pink diamond with its Lot number, full specs, and price. It is free, and you can opt out anytime with one click.
Selling an Argyle Pink Diamond? Know Your Price Before You Commit.
Send us your certificate. We value your diamond against recent Argyle sales and offer you a fixed amount, paid to you when it sells. If you accept, we handle insured collection, independent checks and the buyer. You receive the exact amount we agreed, with nothing taken off. If our offer doesn't suit you, there is no cost and no obligation.
We Compare to Verified Sales
Submit your Argyle lot number or GIA certificate. We compare your stone against verified secondary market realisations to provide a realistic, transparent market valuation in writing.
Guaranteed Net Sum in Writing
We present a guaranteed net AUD settlement amount in a straightforward agreement. You retain 100% legal title to your diamond until full buyer settlement has cleared into escrow.
Insured Transit, Settled in AUD
We coordinate fully insured Brinks transit and independent gemological verification. Upon buyer settlement, your agreed proceeds are remitted directly to your Australian bank account.
- You keep ownership until the sale is complete and paid.
- Insured the whole time it is in our care, from collection to sale or return.
- Change your mind? You can withdraw before a buyer is agreed, and we return it insured.
- No sale, no cost. If it doesn't sell in the agreed term, it comes back to you free.
- Identity and ownership checks are required by Australian law before we accept any stone.
- How we're paid: our margin is the difference between your agreed amount and the sale price.
We may decline stones we can't verify or price realistically. Valuations are a guide, not a guarantee of sale. Speak with your accountant about any tax on the sale.
Request a Stone Certificate, Price Quote, or Shortlist
Whether you require full certificate documentation and firm AUD pricing for a specific vault diamond, a bespoke 3-stone shortlist for a private family office, insured Brinks delivery to Asia or the Middle East, or Australian SMSF paperwork, our desk provides direct, specialist assistance.
Argyle Lot & GIA Report Verification
Insured Delivery · Dubai, HK, SG & AU
Frequently Asked Questions
Diamonds in our Featured Vault Register display their full price and Argyle Lot details openly. Other stones are held on behalf of private family vaults and merchant partners who prefer not to broadcast their Lot numbers publicly on the open web. When you click Request Price / Hold on any stone, we immediately email you the Argyle Lot number, specification sheet, and current AUD price (original physical certificates are sent strictly to buyers upon purchase).
Yes. We serve private collectors and family offices across the Middle East and Asia-Pacific. Every international acquisition is shipped via fully insured door-to-door armoured courier (Brinks Global Services or Malca-Amit) to Dubai, Abu Dhabi, Riyadh, Doha, Singapore, Hong Kong, Tokyo, and major global wealth centres, or held in segregated vault custody in Sydney, Melbourne, and Brisbane.
Every diamond we sell comes with official grading paperwork—either an original Rio Tinto Argyle Pink Diamonds™ certificate with a matching laser-inscribed Lot Number on the diamond's girdle, an Argyle Origin GIA report, or an independent Certified Practicing Valuer (CPV) report. You can verify the report number before settlement.
The number (1 to 9) measures colour saturation: 1 is the deepest, most vivid pink, and 9 is the lightest blush pink. The letters identify the undertone: PP means Purplish Pink, P means Pure Pink, PR means Pink Rose, PC means Pink Champagne, and BL means Blue/Violet.
Yes. For Australian clients, loose natural pink diamonds are eligible inside an SMSF under ATO rules (SIS Regulation 13.18AA and TD 2023/3) when stored in an independent vault such as Brinks or Guardian Vaults, insured in the fund's name within 7 days, and held strictly for investment without personal use. We provide complete audit-ready SMSF documentation.