Rio Tinto has announced what will be its final Beyond Rare™ Tender—the third and last of its annual “Art Series.”
This closing chapter, titled Into the Light, brings together 92 amazing fancy color and colorless diamonds, in 52 Lots, totaling 45.44 carats from two of the company’s iconic sources: the Argyle Mine in Western Australia and the Diavik Mine in the Northwest Territories, Canada.
All images courtesy of Rio Tinto and Argyle Diamonds
With Argyle having been officially closed since late 2020, and Diavik due to wind down next year, 2026, this tender is very much a tribute to the legacy of both mines. The collection includes six “Masterpieces,” carefully matched sets that highlight the best of each mine’s production, along with 39 single stones and seven additional curated sets.
All images courtesy of Rio Tinto and Argyle Diamonds
These Diamonds Are Outstanding!
Rio Tinto’s Patrick Coppens, General Manager of Sales and Marketing, said: “It is hard to overstate the importance of this final collection from two extraordinarily beautiful places on earth – the East Kimberley region of Western Australia and the Northwest Territories of Canada.”
“No other mining company in the world has custody of such an exquisite collection of diamond colours, shapes and sizes and we all pay tribute to the men and women who have worked so hard over many years to bring them to market.”
The final Argyle pink, red, and violet diamonds in the tender come from the mine’s legacy inventory. In other words, these are among the last examples of their kind that will ever come to market from Rio Tinto.
features a set of four complementing Oval shapes,
including two matched GIA Fancy Vivid Purplish Pinks and two matched GIA Fancy Gray-Violets.
All images courtesy of Rio Tinto and Argyle Diamonds
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The Argyle pink, red and violet diamonds have been curated from the final legacy inventory, representing
some of the last of their kind in the world:
One GIA Fancy Red
12 GIA Fancy Violets
76 GIA Fancy Pinks, Purple-Pinks, and Purplish-Pinks
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Two D-Flawless from the same rough crystal
The collection showcases the quality of production from the Diavik mine with two D-colour, Flawless diamonds, including a 5.11 carat Emerald cut and a 3.02 carat Pear shape, each diamond meticulously crafted from the same original rough diamond.
The collection also includes a Fancy Vivid Yellow diamond weighing 6.12 carats.
The diamonds in the final Art Series, revered for their “pure and clean provenance and the kaleidoscope of colours,” are expected to be in strong demand by the world’s finest jewellers, collectors and diamond connoisseurs.
The 52 lots will be showcased in Hong Kong, Australia and Antwerp, with silent bids closing on October 20, 2025.
How the Auction Works
Bidding in this invitation only auction is silent. No one knows anyone else’s bid. You may bid on any number of lots. You can bid on just one, or a pair, maybe three, or even more. You can even place a bid on the entire collection if you want. After all bids are in on October 20th, the highest bids win. The object of this auction is to bid just high enough that you are the highest bid, without bidding too high. And with this being the very last of the Argyle pinks, violets, and red, you have to ask yourself, “What bid is too high?” – gr
Lot 33 and Lot 51 in the 2025 Beyond Rare Tender showcase
a selection of Pear shaped Fancy Vivid Purple-Pink diamonds.
this extraordinary final curation features 52 lots of pink, red and blue diamonds from the Argyle Diamond Mine in Western Australia,
together with white and yellow diamonds from the Diavik Diamond Mine, located in the Northwest Territories of Canada.
All images courtesy of Rio Tinto and Argyle Diamonds
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MASTERPIECES
Leading the collection this year are six diamond sets known as the ‘Masterpieces’, meticulously composed to showcase the brilliance produced by these two iconic mines.
The Masterpieces include the rarest colours of the Argyle spectrum, together with two D-colour Diavik diamonds of Flawless clarity.
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features a set of two Argyle matched GIA Fancy Vivid Purplish-Pink Pear shaped diamonds
and one Diavik GIA D / Flawless Emerald cut diamond.
All images courtesy of Rio Tinto and Argyle Diamonds
Masterpiece 1: Set of two Fancy Vivid Purplish Pink Pear shapes of 0.25 carats, with a 5.11 carat Flawless D-Colour Emerald cut. (seen above and below)
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Masterpiece 2: Set of twelve Fancy Vivid Purplish Pink, Purple-Pink and Intense Pink Round Brilliant cuts between 0.09 and 0.10 carats, with a 6.12 carat Fancy Vivid Yellow Modified Cushion cut. (seen below)
Masterpiece 3: Set of three Fancy Gray-Violet Pear shapes between 0.18 and 0.21 carats, with a 3.02 carat Flawless D-Colour Pear shape. (seen below)
All images courtesy of Rio Tinto and Argyle Diamonds
Masterpiece 4: Pair of Fancy Vivid Pink and Fancy Deep Grayish Bluish Violet Oval shapes between 0.16 and 0.18 carats.
Masterpiece 5: Set of four Fancy Vivid Purplish-Pink and Fancy Gray-Violet Oval shapes between 0.15 and 0.31 carats. (seen above)
Masterpiece 6: Set of three Fancy Gray-Violet, Fancy Intense Purplish Pink and Fancy Gray-Violet Round Brilliant cuts of 0.30 carats each.
