With the source exhausted, licensing arrangements nearing expiry, and certification programmes ending, questions remain about what an upcoming brand transition will mean for pink diamonds.
For more than a decade, pink diamonds have occupied a rarefied position. Exceptionally scarce, highly coveted, and synonymous with remarkable natural beauty, these stones have become an enduring symbol of luxury and exclusivity.
That said, the appeal and value of these stones rest on more than raw beauty. It was also based on a carefully cultivated reputation that distinguished fancy colour diamonds from the broader natural diamond market.
Now, that story is entering a new chapter – and it has a new author.
In early October, Rio Tinto announced the sale of the Argyle Pink Diamonds brand to British luxury jeweller Boodles, transferring stewardship of one of the industry’s most prominent names from the mining company that developed it to a retailer with a longstanding connection to the category.
The transition, completed on 1 October, marks a significant shift in how the category will be managed from a ‘big picture’ perspective. When the Argyle mine ceased production in November 2020, Rio Tinto was steadfast in preserving the reputation and commercial relevance of pink diamonds.
Immediately after this announcement, Boodles rolled out a coordinated media campaign across its social media channels. This included launching and redirecting all official material from the argylepinkdiamonds.com and .com.au websites to the Boodles digital platforms, including changing the ‘Acquire’ link to its domain.
For the Australian jewellery trade, this shift has raised questions about existing licensing arrangements, the future use of Argyle Pink Diamonds branding, and the certification services that have helped build confidence in the category over the past decade.
From mine to market
The Argyle Diamond Mine in Western Australia supplied the overwhelming majority of the world’s pink diamonds, producing more than 90 per cent of global pink fancy colour diamond supply.
Over several decades, a sustained marketing effort helped establish fancy colour diamonds as a distinct and highly desirable category, transforming stones that might once have been treated as incidental inclusions in parcels of white diamonds into sought-after luxury commodities.
When the mine closed, Rio Tinto made clear that the brand’s story would continue beyond the operation itself. Argyle Pink Diamonds as a brand became the centrepiece of that strategy, building international recognition around the rarity, colour and provenance of its stones.
Rather than letting the name disappear with production, the company retained the brand and continued to develop initiatives to protect its legacy and maintain its profile in the jewellery market.
Interestingly, the precise origins of Argyle Pink Diamonds as a standalone brand are less clearly documented. When Rio Tinto launched its Icon Partner programme in June 2022, the company said it had been managing the brand for more than 30 years. That timeframe places its development in the late 1980s or early 1990s, coinciding with the broader effort to distinguish fancy colour diamonds from the natural diamond market.
The sale to Boodles now puts that legacy in the hands of a company whose primary business is jewellery retail, not mining.
The transaction includes ownership of a range of Argyle Pink Diamonds trademarks, the brand’s website and digital marketing assets, and the mine’s last remaining pink diamond inventory. The value and volume of the inventory transfer have not been disclosed.
In a statement announcing the transaction, Rio Tinto general manager of sales and marketing Patrick Coppens said that, with more than 200 years of experience in the jewellery industry, Boodles was a fitting custodian for the brand’s future.
Rio Tinto’s decision to eventually part ways with the Argyle Pink Diamonds brand likely surprised few who have followed it closely. The company has otherwise broadly withdrawn from the diamond business altogether.
Rio Tinto’s final diamond operation, the Diavik Diamond Mine in Canada’s Northwest Territories, closed in March 2026, as the company continued to concentrate its portfolio on commodities including copper, iron ore, aluminium, and lithium.
With that said, for Argyle Pink Diamonds, the change is particularly significant. The brand’s future will now be shaped by a jewellery retailer rather than the mining company that brought the stones to market and established the systems underpinning their recognition.
 |
| Boodles' featured Argyle pink diamonds in its Play of Light collection. |
A natural fit
Headquartered in Liverpool, Boodles traces its heritage to 1798 and operates 10 stores across the United Kingdom and Ireland, including its flagship on Old Bond Street in London.
The company’s relationship with pink diamonds predates the brand acquisition by almost three decades. Boodles first acquired a pink diamond in 1998, and managing director Jody Wainwright has previously told reporters that pink diamonds feature in approximately five per cent of the jewellery the company produces.
That history provides a foundation for the transition, although it must be said that owning the brand brings what best be described as ‘expectations’ that extend beyond incorporating the stones into new designs.
Speaking to Jeweller, Wainwright said Boodles recognised the significance of the acquisition and the importance of preserving the brand’s established identity.
“Boodles has been investing in Argyle pink diamonds since 1998, and over the years they have become an important part of our story, featuring in some of our most distinctive collections such as Play of Light, Raindance and Be Boodles,” he said.
“This feels like a very natural next chapter for us. What makes Argyle Pink Diamonds so extraordinary is their rarity. With the Argyle mine having closed in 2020, the world’s supply is finite, making the stones that remain all the more special.
“Drawing on Boodles’ 228 years of expertise, we look forward to taking the brand forward, celebrating the exceptional stones we have and creating new designs and collections for customers to appreciate them.”
Wainwright said preserving the distinctive character of Argyle Pink Diamonds branding would be central to the company’s strategy moving forward. It will be a matter of striking a fine balance between maintaining recognition among existing collectors and allowing the brand to develop under its new ownership.
"Our priority is to preserve what makes the Argyle Pink Diamonds brand so distinctive, retaining the identity that collectors know and recognise, while allowing the brand to evolve naturally under Boodles," he said.
"We look forward to building on the brand’s extraordinary legacy, maintaining its international profile at the highest level and continuing to share the rarity and beauty of Argyle pink diamonds with collectors around the world."
Wainwright noted that Boodles plans to leverage its newly acquired digital footprint to reach audiences globally, supported by fresh marketing investments.
“We now look after the Argyle Pink Diamonds website and social media channels, which will play an important role in this,” he explained. “While Boodles is best known in the UK, Argyle pink diamonds have a global following, and we see this as an opportunity to share their story with audiences both here and internationally.”
To support this narrative, Boodles had ready-produced digital assets, including a documentary-style video capturing Wainwright travelling to Australia and visiting Rio Tinto’s historic Argyle mine site.
 |
Inspired by royal Kensington porcelain, this Boodles Platinum, Rose Gold, Diamond and Sapphire The Palace Collection Royal Porcelain Collar Necklace unites
a rare Ceylon sapphire with exquisite pink and white diamonds in platinum. |
An uncertain future for the trade
What remains unclear, however, is how the transition will affect the broader network of jewellers that have worked with Argyle Pink Diamonds under Rio Tinto’s licensing programmes.
In June 2022, Rio Tinto introduced its Icon Partner programme, designed to protect the legacy and provenance of Argyle Pink Diamonds. Participating jewellers, including John Calleja and John Glajz, were licensed to develop outstanding inventory into iconic jewellery and limited-edition pieces.
A separate initiative, the Argyle Pink Diamonds Select Atelier programme, brought together a select group of master jewellers licensed by Rio Tinto to showcase pink diamonds. The international network comprised around 30 participants.
In Australia, prominent Select Ateliers have included Kimberley Fine Diamonds, Linneys, Nina's Jewellery, Rohan's Jewellers, Paul Bram, and Cerrone Jewellers, to name just a few.
The future of these arrangements remains unresolved. The Argyle Atelier and Authorised Partner brand licences were expected to expire in December 2026, while the historic wholesale and retail partner network has been licensed to use selected Argyle Pink Diamonds logos and imagery until the end of the year.
Wainwright confirmed that those existing agreements had not transferred to Boodles and would continue to be managed by Rio Tinto until their expiry.
“We understand the interest in this next chapter. We are taking the time to work through the transition carefully,” he said.
“We can confirm that the historic wholesale and retail partner network continues to be trademark licenced until the end of the year. Those agreements have not been transferred to us, and the Rio Tinto team will continue to manage those current relationships to expiry.”
Beyond that date, it remains unclear how other jewellery businesses will be able to use the brand’s established identity.
"We appreciate the importance of these materials to those who have worked with Argyle pink diamonds over the years," Wainwright said.
"It would be premature to comment on future usage or exclusivity while the details of the transition are being considered."
Wainwright reiterated that protecting the brand’s integrity would guide any future decisions concerning its name and visual identity.
"Moving forward, protecting the integrity of the Argyle Pink Diamonds brand will be central to our approach," he said.
“Any future considerations around its name, logo and imagery will be guided by that principle.”
 |
A showcase of high-jewellery masterpieces created by Argyle Pink Diamonds Select Ateliers and Icon Partners. This exclusive network of master artisans
has spent decades transforming rare pink diamonds from Western Australia into iconic works of art. |
Finite supply, enduring demand
With production at Argyle having ended, the remaining inventory is finite, placing greater emphasis on how it is managed and released into the market.
“In terms of diamond sales, with the mine closing in late 2020, the legacy inventory maintained by Rio Tinto has now been depleted,” Wainwright said.
“This sadly means that no further volumes of these beautiful diamonds will be offered to the market in the future.”
Rio Tinto held its first pink diamond tender in Antwerp in 1984, offering 33 stones. The final Argyle tender took place in October 2021, featuring 70 diamonds weighing a combined 81.63 carats and achieving what the company described as ‘record-breaking’ returns.
Argyle stones subsequently continued to feature in Rio Tinto’s broader Beyond Rare tenders. The company hosted its final Beyond Rare tender in October 2025, presenting an assortment weighing 45.44 carats. The offering included six ‘masterpieces’, seven curated diamond sets and 39 individual diamonds, although some of the fancy colour stones originated from Diavik rather than Argyle.
Although neither party disclosed the volume or value of the diamonds transferred as part of the acquisition, Wainwright has previously suggested the inventory would support a measured release over the next decade.
The company does not, however, intend to replicate Rio Tinto’s tender model at this stage. Asked by Jeweller whether Boodles planned to hold tenders or sell pre-owned Argyle pink diamonds, Wainwright said: "This is not part of our plan at this stage."
Instead, the company indicated that the diamonds will continue to feature in its own collections, with a new release planned for next year.
“Boodles will focus on dedicating its extraordinary inventory to creating exceptional new jewellery designs and collections over several years,” Wainwright explained.
 |
The Vintage Pink Diamond Ring features a 2.25-carat fancy pink cushion-cut centre stone. To the right, the floral-inspired Townhouse Suite celebrates
the grand opening of Boodles' 23 Old Bond Street flagship by mirroring its internal architecture. |
The question of provenance
Perhaps the most consequential aspect of the transition for the broader industry concerns certification and authentication.
For decades, Rio Tinto’s certification programmes helped establish provenance and consistent colour and clarity grading for pink diamonds. Wainwright confirmed that these programmes were not included in the assets transferred to Boodles and that Rio Tinto had decided to discontinue them permanently.
"The certification and recertification programmes previously offered by Rio Tinto are not part of the assets transferring to Boodles," Wainwright confirmed.
"With mine closure taking place nearly six years ago in 2020, and with no further production coming to the market, Rio Tinto has decided to permanently cease those programmes.
“The online authentication functionality, which allows consumers and the trade to confirm the veracity of all existing Argyle Pink Diamonds certificates and inscription numbers, will continue to be maintained."
He added: “All diamonds with existing Argyle Pink Diamonds certificates and laser inscriptions can be assured of authenticity, and parties holding these precious gems will continue to be able to search for their diamond using the existing online authentication functionality.”
Addressing this shift for market stakeholders, Wainwright emphasised the importance of existing documentation.
“These services will no longer be offered in the future. The Rio Tinto team had spent decades working to ensure confirmed provenance (together with consistent colour and clarity grading), for hundreds of thousands of diamonds, either by certification at the point of sale from the mine or via recertification for older or repolished stones,” he explained.
While existing certificate holders can rely on online verification, the absence of future recertification means secondary market stones that undergo repolishing or lack original paperwork will no longer have access to official mine provenance validation.
 |
Inspired by antique lace, the Be Boodles Collection features delicate designs with interlocking, mirrored "B" motifs in 18-carat rose gold and platinum.
The designs were relaunched with Argyle pink and white diamonds. |
Legacy beyond the mine
The sale of Argyle Pink Diamonds to Boodles secures the brand's future beyond the operation that made it famous. For decades, Rio Tinto was far more than a producer. Through its Select Atelier network, Icon Partner projects, and worldwide marketing campaigns, the mining giant provided backing and shared stewardship that catapulted Australian pink diamonds onto the global stage.
As that authorship now transfers to Boodles, and Rio Tinto's official trade support and certification programmes draw to a close, the shift marks the end of a collaborative era. Yet for those who built their reputations in this environment, this transition may also present a meaningful turning point.
What this evolving landscape ultimately looks like remains to be seen because the true legacy of pink diamonds can never be bought or sold. Beyond corporate ownership, their story endures in the hands of the artisans who shape them.
 |
Showcasing unmatched artistry, these Boodles pink diamond rings feature a historic 104-facet Ashoka-cut masterpiece, a swirling Monaco ring
mirroring Monte Carlo’s winding streets, and an octagonal Fifth Avenue design emulating Manhattan’s Art Deco skyline. |
| |
 |
Inspired by Historic Royal Palaces, Boodles' 18-carat rose gold Tudor Skyline collar features an amazing architectural secret – its diamond-set geometric patterns
mimic the precise lines of all 241 chimneys standing atop Hampton Court Palace. |
Watch Video