Sotheby’s is set to showcase one of the world’s rarest diamonds during its upcoming series of luxury auctions and exhibitions in Abu Dhabi, held from 2 to 5 December at The St. Regis Saadiyat Island Resort. The events form part of Abu Dhabi Collectors’ Week, which will feature masterclasses, panel discussions, and curated exhibitions highlighting fine jewellery, timepieces, collector cars, luxury real estate, and other exceptional assets.
The highlight of the auction is “The Desert Rose”, a 31.86-carat fancy vivid orangy-pink diamond, the largest of its kind ever graded. This extraordinary pear-shaped gem—first unveiled in Sotheby’s “Beyond: The World’s Rarest Diamonds” exhibition earlier this year—makes its auction debut with an estimated value of USD $5–$7 million.
The timing of the event coincides with one of Abu Dhabi’s busiest weeks, which includes the Formula 1 Grand Prix, the Milken Institute Middle East and Africa Summit 2025, Abu Dhabi Finance Week, and Bitcoin MENA. Together, these prestigious gatherings are expected to attract a global audience of collectors, investors, and cultural leaders.
Following Sotheby’s successful inaugural sale in Saudi Arabia earlier this year, the Abu Dhabi auctions further underscore the Middle East’s growing influence in the global luxury and cultural landscape. Saadiyat Island, home to institutions such as the Louvre Abu Dhabi, the forthcoming Guggenheim Abu Dhabi, and the Zayed National Museum, continues to establish itself as a world-class destination for art and high-value collectibles.
The Desert Rose diamond’s debut marks a milestone in coloured diamond history—its rarity, hue, and size exemplify the exceptional standards that define the world’s most coveted gems.
A rare 10.08-carat fancy vivid pink diamond ring, named The Glowing Rose, is set to take centre stage at Sotheby’s upcoming High Jewellery sale in Geneva on 12 November. Expected to achieve around USD 20 million, the stone represents one of the most important pink diamonds to reach the auction block in recent years.
This exceptional cushion brilliant-cut diamond crafted by luxury jeweller Boodles originates from a 21-carat rough unearthed in Angola in 2023. Its vivid, pure pink hue and balanced proportions exemplify the rarest qualities of natural fancy coloured diamonds. According to Sotheby’s, it is only the third cushion cut vivid pink diamond over 10 carats to appear at auction within the past decade.
The cushion cut, recently popularised by Taylor Swift’s engagement ring, has become increasingly sought after among collectors for its romantic and timeless appeal.
Sotheby’s has a strong record of achieving exceptional results for vivid pink diamonds. In 2022, the auction house sold the Williamson Pink Star an 11.15 carat, fancy vivid pink, internally flawless diamond for USD 57.7 million in Hong Kong. The following year, a 10.57 carat vivid purplish-pink diamond fetched USD 34.8 million in New York. Earlier this year, Sotheby’s Geneva achieved USD 21.5 million for the Mediterranean Blue, a 10.03-carat fancy vivid blue diamond.
“With the continued global demand for rare coloured diamonds, we are delighted to present The Glowing Rose,” said Jessica Wyndham, Head of High Jewellery at Sotheby’s Geneva. “Following the remarkable success of the Mediterranean Blue, this sale offers collectors another extraordinary opportunity to acquire a truly exceptional gem.”
Before its appearance in Geneva, The Glowing Rose will be showcased in Singapore and Taipei, giving collectors and connoisseurs a preview of one of the year’s most significant pink diamonds.
DCLA notes that fancy vivid pink diamonds remain among the most coveted and valuable gems in the world, combining extraordinary rarity with strong global demand from collectors and investors alike.
A spectacular 6.95-carat fancy vivid purplish pink Golconda diamond will lead The Geneva Jewels Auction: V, as Phillips Geneva prepares to offer an extraordinary collection of jewels once owned by the legendary Vanderbilt family, once America’s richest dynasty.
Among the highlights is a Tiffany & Co. 42.68-carat sugarloaf Kashmir sapphire and diamond brooch, estimated at US$1 million to US$1.5 million, alongside a step-cut Kashmir sapphire and diamond ring weighing 18.09 carats (estimate US$2.2 million to US$2.8 million). The sale also features a stunning pair of brilliant-cut diamond ear studs, weighing 8.00 and 8.28 carats, both graded D colour, VVS1 clarity, with an estimate of US$600,000 to US$850,000.
The Vanderbilt name is synonymous with immense wealth and American industrial power. The family’s fortune began with Cornelius Vanderbilt, who, at age 16, borrowed $100 from his mother to start a ferry service in 1810. He later built a shipping and railroad empire that made him the richest man in the United States, worth about $100 million at his death in 1877 — equivalent to at least $185 billion today.
His son, William Henry Vanderbilt, further doubled that fortune to over $200 million (around $370 billion in today’s terms). However, the family’s wealth gradually dispersed over subsequent generations, with the combined net worth of the Vanderbilt descendants now estimated at around $200 million.
The Geneva Jewels Auction: V, featuring The Vanderbilt Family Jewels, will take place on 10 November at Phillips Geneva, marking a rare opportunity for collectors to acquire pieces linked to one of America’s most storied families.
Vibrant 0.45-carat gem adds final flourish to Diavik’s closing years. Just when it seemed Diavik had given all it could give, a rare purple diamond has been unearthed at the Northern Canadian mine – a 0.45-carat stone that stands out in a region better known for producing predominantly colorless gems and the occasional yellow stone, adding a splash of unexpected color as the operation approaches the final years of its mine life.
The discovery, quietly announced by Rio Tinto via social media, comes just weeks after the recovery of a 158.2-carat yellow diamond and a 50-million-year-old petrified log – both of which drew attention to the remarkable geological and historical treasures still surfacing from the remote subarctic site.
“We recently had a unique discovery at Diavik – a rare purple diamond weighing in at 0.45 carats,” the company wrote in a social media post on LinkedIn.
“Diavik diamonds are typically white, so this came as a pleasant surprise,” the post continued. “The purple colour likely comes from a trace element such as hydrogen or a twist in the crystal lattice structure of the diamond. The shape of the rough diamond is known as a ‘makeable’ which means it will likely be cut into a single diamond.”
Though small in size, the stone is striking for its rarity, with colored diamonds of any kind making up less than 1% of Diavik’s total production over more than two decades of operation.
Among them, purple diamonds are the rarest, their distinctive hue typically attributed to hydrogen impurities or plastic deformation deep in the Earth’s mantle – a result of the intense pressure and heat that alters the crystal structure during formation.
In gemological terms, purple diamonds are often classified under the broader category of “fancy color” stones, though few attain the deep saturation necessary for that label. More often, their shades fall within the purplish-pink or violet spectrum, with pure purple standing as one of the most elusive colors in the diamond world.
For Diavik, the recovery of such a specimen near the end of its mine life serves as both a scientific curiosity and a symbolic capstone.
Since beginning production in 2003, the mine has yielded over 140 million carats of rough diamonds – predominantly colorless, with a handful of exceptional yellow stones including the 552-carat “egg” discovered in 2018 and the more recent 158.2-carat find earlier this year.
Yet, while the occasional yellow diamond has offered moments of brilliance, the purple discovery stands out for its singularity.
While not the first purple diamond recovered from Diavik – industry veterans have noted smaller specimens dating back more than a decade – this 0.45-carat stone ranks among the most notable, particularly for its size, clarity, and timing near the end of the mine’s operational life.
Purple diamonds are so rare that only a few notable examples have surfaced globally, often fetching premium prices far beyond their white or even pink counterparts. Their appearance in the trade is sporadic, and their origin even more geographically restricted – making a Canadian purple diamond an especially uncommon occurrence.
Diavik’s purple gem is expected to be cut into a single polished stone, though no details have been released about where it might end up – in private hands, a high-profile auction, or perhaps a Canadian institution.
Whatever its path, the find adds a final chapter to Diavik’s legacy – a small but vibrant reminder that even in its twilight, the remote Arctic mine remains full of surprises.
Sotheby’s, in partnership with the Abu Dhabi Investment Office, is exhibiting extremely rare coloured diamonds at Bassam Freiha Art Foundation this week, in the biggest showcase of diamonds outside of the Smithsonian Museum in Washington DC.
All together, the spectacular diamonds are worth around $100 million. The largest flawless diamond in the world, the largest vivid orangey pink diamond ever graded, the second largest red diamond known to exist and several diamonds over 100 carats are included in the collection, which will be available for public view this Wednesday, April 9 and Thursday, April 10.
“The exhibition is incredibly exciting for the simple reason that to purely just have eight diamonds of this calibre in the same room is something that is worthy of one of the great museums in the world, and I can’t imagine that we will ever see this array together again,” says Paul Redmayne, Sotheby’s senior vice president for luxury private sales. “It is definitely a career highlight for me to see these stunning gemstones side by side, and I look forward to no doubt witnessing many a jaw drop as the public come through the doors.”
The star of the showcase is none other than The Mediterranean Blue. Weighing 10.03 carats, this Fancy Vivid Blue rarity has earned the highest GIA colour grading and a coveted Type IIb classification, an elite status held by less than 0.5 per cent of diamonds. Its cushion cut intensifies its liquid-like saturation, an electrifying depth that feels almost surreal. With an estimated value of $20 million, The Mediterranean Blue will be the highlight of Sotheby’s High Jewellery Sale on May 13 in Geneva.
“The Mediterranean Blue diamond on its own is an incredibly rare stone, and ticks so many of the boxes that you could look for: it is a connoisseur’s diamond, whilst also being infinitely wearable,” shares Redmayne. “The depth of the blue is unrivalled, and even to someone who knows nothing about diamonds, it’s clear to see what makes it so special.”
The diamond is a timeless symbol of love, power, beauty and status – but a captivating collection of this stature is awe-inspiring at an entirely different level; a once-in-a-lifetime experience in the UAE’s capital city, which Redmayne says marks an incredibly exciting moment in the city’s history. “This project further enriches the dynamic landscape of Abu Dhabi for both collectors and the general public,” he says.
An agreement has been entered into for the outright sale of Williamson Diamonds Limited, Petra Diamonds announced on Wednesday.
The London-listed and South Africa-active Petra is taking steps to sell its entire shareholding in the Tanzanian entity to Pink Diamonds Investments for a headline consideration of up to $16-million.
This follows Petra’s sale in May of just under half of the asset, in which the Tanzanian government has a stake, for $15-million via long-term technical services contractor Taifa Mining.
Since then, Williamson’s coming under consolidated ownership has emerged increasingly as the preferred way forward.
As a Taifa affiliate, Pink Diamonds is viewed by Petra CEO Richard Duffy as possessing the technical and financial capability to conduct operations in a responsible manner for all stakeholders.
As a wholly Tanzanian-owned company with more than three decades of mining-related experience, Taifa’s working relationships extend to mining majors such as De Beers, Barrick and AngloGold Ashanti. It is now entering a phase of exclusive ownership of the asset where about 1 100 people are employed, most of them Tanzanian.
The mine’s reserves and resources as of June 30 were reported as 37.17-million carats. With liquidity challenges continuing, further capital investment will be required.
“We look forward to working closely with the Mining Commission, the Fair Competition Commission, employees, community representatives and other key stakeholders in completing the sale as soon as possible,” Duffy stated in a stock exchange announcement accessed by Mining Weekly.
In South Africa, Petra operates the Cullinan diamond mine in Gauteng and the Finsch diamond mine in the Northern Cape.
“We’re committed to adopting and adhering to the latest internationally recognised standards throughout all aspects of our business,” said Pink Diamonds chairperson Rostam Azizi, whose family are from the area around Mwadui, the other name for the Williamson mine, which is situated 23 km north-east of Shinyanga in northern Tanzania.
Mining Weekly can report that the discovery of the kimberlite pipe by Canadian geologist John Williamson in 1940 led to ongoing operation since then, making it one of the world’s oldest continuous operating diamond mines. Its yield of 19-million-plus diamond carats includes the 54.5 ct Williamson pink diamond presented to British royalty in 1947.
A 16.73 carat very light pink diamond is expected to sell for CHF 1.1m to CHF 1.8m ($1.3m to $2m) in Sotheby’s Geneva Magnificent Jewels Sale.
Another highlight of the sale, which features many colored diamonds, is a 1.44 carat fancy red diamond (the rarest of all diamond colors) from Australia’s iconic Argyle mine.
They’ll be offered for sale next week (13 November) in a live auction of 88 lots, including pieces by Cartier, Van Cleef & Arpels, Tiffany, Bulgari and JAR, spanning 250 years of jewelry history.
The pink diamond is claw-set in a ring, VVS1-clarity, natural color with a brilliant cut. The red diamond is also claw-set in a ring, with a cut-cornered rectangular mixed cut, together with an Argyle mine presentation case.
“The sale is a celebration of exceptional craftsmanship, with signed jewels from the most esteemed makers of the 20th century,” says Sotheby’s. The sale also offers a number of coloured diamonds of outstanding quality and size, within the rarest of colors.”
The Perth Mint continues its Jewelled series of coins with a 10 ounce gold Jewelled Turtle coin with a mintage of eight coins.
And it comes with a price tag of $269,000 Australian ($182,229 U.S.).
This is the seventh release in the Jewelled series. It features a handset rare trademarked Argyle Pink Diamond and lustrous white diamonds that form the head and limbs of the three dimensional 18 karat gold turtle.
Each Jewelled Turtle coin is a Proof 10 ounce .9999 fine gold $2,500 denominated coin, with the centerpiece the 18-karat gold sea turtle surrounded by depictions of coral and dory fish.
The turtle’s head and limbs are embellished with 52 white diamonds, and two emeralds for its eyes. Additional white diamonds are set in a ribbon shaped line symbolizing the sea surface, with an Argyle Pink Diamond set at the heart of a stylized sun.
The Jewelled Series is developed each year in association with John Glajz, a Singapore based Argyle Pink Diamonds Icon Partner.
Each Jewelled Turtle coin is presented in a luxury display case adorned with 18 karat gold furnishings and inset with two Argyle Pink Diamond.
For the first time in the series, the coin bears the Dan Thorne effigy of King Charles III, as well as the P125 privy mark for the Perth Mint’s 125th anniversary.
Christie’s will offer “The Eden Rose,” a 10.20-carat round brilliant fancy intense pink diamond, as the top lot of its New York Magnificent Jewels auction on June 11. Its estimate is $9 million to $12 million. It is the first time this diamond has appeared at auction.
The Gemological Institute of America report supplied by Christie’s states that the diamond is also internally flawless.
Describing it as an “exceptionally rare gemstone,” Christie’s says the gem, named after the symbol for unconditional love, it is the most significant round brilliant internally flawless fancy intense pink diamond to be offered at auction since the “Martian Pink,” which sold at Christie’s Hong Kong in 2012 for $17.4 million, equating to $1.45 million per carat.
The diamond exhibits a pure pink hue, unlike many natural pink diamonds that typically display secondary hues such as purple, orange or gray. “The Eden Rose stands out for its complete absence of any secondary color, rendering it exceptionally rare,” Christie’s said in a statement.
Rahul Kadakia, Christie’s International head of Jewelry, said in a statement that he is “anticipating significant interest from around the world.”
Christie’s says the round brilliant cut is known for its ability to maximize light reflection and is considered the ideal cut for diamonds.
The Eden Rose is mounted on a ring further adorned with eight brilliant-cut diamonds, ranging in weight from 3.11 to 0.73 carats, and two marquise brilliant-cut diamonds of 2.24 and 1.02 carats.
A 6.21-carat pink diamond will be the star of the second jewelry auction Phillips will hold in Geneva, where it is expected to fetch up to CHF 13.6 million ($15 million).
The fancy-vivid-pink, VS1-clarity, type IIa diamond ring is among several important and rare pieces on offer at the sale, called Geneva Jewels Auction: Two, which will take place on May 13, Phillips said Tuesday. The auction will be at the Hotel President Geneva for the first time, and it will include over 100 specially curated items from well-knowns design houses such as Cartier, JAR, Suzanne Belperron, and Van Cleef & Arpels.
Prior to the sale, Phillips will exhibit the jewels in New York; London; Taipei, Taiwan; and Singapore. The auction house will also hold a simultaneous selling exhibition called “Symbols, Colour and Form,” which will feature jewels from contemporary designers Alix Dumas and DYNE.
Here are the rest of the of the top five items Phillips will feature at the main sale:
This 280.84-carat Colombian emerald is from a private collection. Known as The Amazon Queen, it carries an estimate of CHF 1.4 million to CHF 2.4 million ($1.5 million to $2.6 million).A 27.27-carat, fancy-vivid-yellow diamond ring will also go under the hammer. It is expected to bring in between CHF 1 million and CHF 1.8 million ($1.1 million to $2 million).A pair of earrings set with pear-shaped, D-flawless, type IIa diamonds weighing 10.07 and 10.12 carats has a presale price range of CHF 1.2 million to CHF 1.6 million ($1.3 million to $1.8 million).Phillips will offer this brilliant-cut, 1.56-carat, fancy-red Argyle diamond at the Geneva auction. Named The Argyle Phoenix, it is estimated at CHF 910,000 to CHF 1.4 million ($1 million to $1.5 million).
Dubai-based manufacturer Choron has signed an agreement with Storm Mountain Diamonds to cut and polish a 108.39-carat stone from the Kao mine in Lesotho.
Storm Mountain, a joint venture between Namakwa Diamonds and the Lesotho government, recovered the type IIa diamond in March. The stone is one of the largest pink diamonds ever discovered, Storm Mountain said last week.
“Storm Mountain continues to consistently deliver extraordinary diamonds, and this diamond further cements the Kao mine as the primary producer of pink diamonds globally,” said Storm Mountain board chairman Robert Cowley. “We are thrilled to enter into this agreement with Choron, and we look forward to the next chapter of this diamond’s story.”
Storm Diamonds will retain a minority share in the stone, while Choron will manufacture and market it, Choron CEO Anshul Gandhi told Rapaport News. The company has not disclosed the other terms of the partnership.
“It is a privilege for Choron to unlock the secrets within this remarkable pink diamond, and we look forward to revealing the story of this historic diamond,” said Ghandi. “Our artisans will meticulously transform this rough diamond into an array of polished diamonds that will be remembered for generations to come.”
A 3.06-carat pink diamond ring will be the star of an upcoming jewelry sale at Heritage Auctions, where it is set to fetch as much as $300,000.
The modified marquise-shaped, fancy-pink stone, surrounded by 0.55 carats of full-cut diamonds, will lead the December 4 Holiday Fine Jewelry Signature Auction in Dallas, Texas, Heritage said Monday.
Other standout items include pieces by Cartier, Van Cleef & Arpels, and Tiffany & Co., and diamond earrings created in 1950 by Parisian jeweler Jean Schlumberger. One of the more interesting lots is an enamel and 18-karat gold helicopter by Pierno Frascarolo & Co.
Here are some of the other top items:
A ring by designer David Webb features a pear-shaped, 18.65-carat Ceylon purple sapphire, 9.35 carats of full-cut diamonds and a turquoise cabochon, estimated at up to $80,000.An emerald-cut, 4.62-carat, H-color, VS1-clarity diamond ring is expected to fetch up to $75,000 at the auction.This ring is set with a cut-cornered rectangular-cut, 5.57-carat, fancy-intense-yellow, VS1-clarity diamond center stone, flanked by tapered bullet-shaped white diamonds and rectangular-shaped emeralds. It carries a presale price range of $50,000 to $75,000.Heritage will offer this cushion-shaped, 19.51-carat sapphire and diamond ring for $50,000 to $70,000.
A 29.52-carat pink diamond went for more than $8 million at South Africa-based Pioneer Diamond Tender House, the highest price for any stone the company has sold.
The fancy-vivid-pink, type II rough — named the Protea Pink after South Africa’s national flower of the same color — raked in $271,307 per carat, Pioneer said Wednesday.
A junior mining company recovered the diamond from a deposit on the banks of the middle Orange River, according to Lyndon de Meillon, a shareholder in Pioneer. The stone is believed to come from a 90 million-year-old Lesotho kimberlite that broke off and made its way down the river, where it got trapped in a terrace approximately 500 kilometers from its original location, he explained.
“This unique diamond…once again showcased why the alluvial diamond deposits of South Africa represent the highest and most consistent value-per-carat diamond supply in the world,” de Meillon added.
JOHANNESBURG- A junior diamond mining company has recovered a spectacular pink diamond from the banks of the Middle Orange River.
The diamond, named Protea Pink, is a fancy pink, 29.52 ct type II diamond, with unusual depth of colour and exceptional clarity. Its colour is reminiscent of the pink hues found in South Africa’s national flower, the protea.
This diamond was most likely derived from the 90-million-year-old Lesotho kimberlites and made a remarkable journey down the Orange river to be trapped in an ancient river terrace, approximately 500 km from its source, South African Diamond Producers Organisation (Sadpo) vice-chairperson and geologist Lyndon de Meillon stated in a release to Mining Weekly.
Sadpo, an organisation that aims to streamline the diamond diggers industry, is headed by CEO Yamkela Makupula, who is a director of Pioneer Tender House, where Protea Pink will be sold on tender in South Africa during the week of 26/30 June. The sale will end on Friday 30 June.
The Middle Orange River, which is known as the area with the highest average value per carat in the world, also has the lowest grade in carat per hundred tonnes of any area actively mined, De Meillon explained.
The modern-day alluvial diamond miner utilises no chemicals in the recovery process and rehabilitation of the mining areas has been proven to improve the carrying capacity of the land, De Meillon added.
Unemployment rates in the area are alarmingly high, exceeding 70%, with mining operations, such as this one by a junior miner, playing a crucial role in supporting the local economy by providing job opportunities and stimulating economic growth.
The revenue generated from diamond mining can contribute to infrastructure development, education, healthcare, and other essential services in the community.
Storm Mountain Diamonds (SMD), jointly owned by Namakwa Diamonds Limited and the Government of Lesotho, has recovered a 108.39-carat fancy pink diamond at its Kao Mine in the Southern African country.
The diamond is one of the largest pink roughs ever found in Africa, which include the “Lulo Rose”, 170-carat precious stone recovered by Australia’s Lucapa Diamond in Angola last year.
SMD said the diamond was recovered from a 1.5 tonne sample of kimberlite ore that was processed at the mine’s plant.
It is a Type IIa stone, which means it has very few impurities and a high level of clarity, the company said.
The Kao Mine is one of the largest diamond mines in Lesotho and produces about 400,000 carats of diamonds annually.
Coloured diamonds, especially pink ones, have repeatedly set record-setting prices in recent years as they are rarer than white ones. While they come in many hues, pink and blue are the most coveted.
“The Eternal Pink,” a 10.57-carat internally flawless fancy vivid purplish-pink diamond
“The Eternal Pink,” a 10.57-carat internally flawless fancy vivid purplish-pink diamond, will be offered at Sotheby’s New York on June 8. Its estimate is $35 million, which if achieved, would make it one of the most valuable gems ever sold at auction.
Its per-carat estimate of more than $3.3 million is the largest such estimate ever placed on a diamond or gemstone, according to Sotheby’s.
Quig Bruning, head of Sotheby’s Jewelry, Americas, says it’s the most vivid pink diamond to ever to come to market. “This color is the most beautiful and concentrated shade of pink in diamonds that I have ever seen.”
The cushion-shaped diamond will first be on view in Hong Kong April 1 – 7 to coincide with the 50th anniversary of Sotheby’s presence in Asia. The gem will then travel to Dubai, Singapore, Shanghai, Taiwan and Geneva before being offered as the top lot at Sotheby’s New York Magnificent Jewels auction on June 8.
The 23.78-carat rough which yielded The Eternal Pink was mined by De Beers at the Damtshaa mine in Botswana. Diamond manufacturer, Diacore, took six months to cut and polish the gem into its current color, described as “bubblegum” by the auction house.
“This stunning diamond is the best of the best when it comes to exceptional pink diamonds and it is difficult to overstate its rarity and beauty,” said Wenhao Yu, chairman of Jewellery and Watches at Sotheby’s Asia.
Sotheby’s has had some experience with important pink diamonds. The auction house sold the record-breaking CTF Pink Star, a 59.60-carat oval mixed-cut Fancy Vivid Pink Internally Flawless diamond, sold for $71.2 million—a world auction record for a diamond and any gemstone or jewel—in Hong Kong in April 2017. More recently, Sotheby’s sold the Williamson Pink Star, an 11.15-carat fancy vivid pink internally flawless diamond, for $57.7 million in a single-lot auction at Sotheby’s Hong Kong on October 8, 2022, setting the world record price per carat for any diamond or gemstone at more than $5.1 million.
Colored diamonds continue to demand high prices at auction with exceptional pink and blue diamonds leading the way. It is because of their rarity, according to Sotheby’s. Of all the diamonds submitted to the Gemological Institute of America, fewer than 3% are classified as colored diamonds. Within these colored diamonds, pink is one of the rarest to occur naturally in diamonds. A diamond that is more than 10 carats, with strong color, internally flawless clarity, and classified as a “vivid pink,” the highest grade for a pink diamond is extremely rare.
Only one in 10,000 diamonds found are coloured, according to the Gemological Institute of America.
Average prices for fancy coloured diamonds of any size climbed by 3.9% in 2022, led by yellows and pinks, the Fancy Color Research Foundation (FCRF), a non-profit that promotes transparency and fair trade in the market, said on Wednesday.
The industry body said prices for all yellow diamonds climbed by 4.6% from the previous year, followed by a 3.9% rise in pinks and 1.8% in blues.
The improved prices reached by these diamonds, the FCRF said, contrast with the annual decline in white diamonds prices.
“2022 was a very good year for yellow fancy colour diamonds in all sizes and saturations. It seems like yellow diamonds with high visual grades and in certain shapes increased by more than what is reflected in the Index,” FCRF data supplier, Israel Papushado, said in a statement.
Source: FCRF.
“Pink fancy colour diamonds performed with no significant change in comparison to previous years; however, blue diamonds did not perform as expected, probably due to limitations in the Chinese market,” he noted.
The prices reported by the FCRF are based on its own Fancy Colour Diamond Index, which is built on tracked data for yellow, pink, and blue fancy colour diamonds’ performance in major global trading centres such as Hong Kong, New York, Geneva and Tel Aviv.
Nature bestows fancy colours on about one in every 10,000 rough diamonds of gem quality that are mined around the world.
The precious stones that can be blue, pink or green form a special asset class, relying on a consumer preference for exotic and unusual items. This also means they are less affected by other factors driving supply and demand in the main diamond market.
Rio Tinto’s Unique $1.24m Midnight Sun Diamond Ring
Midnight Sun Diamond Ring
Pink and yellow diamonds from two iconic Rio Tinto mines – Argyle and Diavik – have been brought together to create a unique ring.
It’s called Diavik Midnight Sun and has been valued at $1.24m.
An 18.08 carat fancy intense yellow oval diamond from Diavik, in sub-Arctic Canada, contrasts with an intricate setting of rare Argyle pink diamonds, from the now-closed mine in in the remote East Kimberley region of Western Australia, weighing 4.09 carats in total.
The yellow diamond was cut from a 36.75-ct rough gem, described as one of the finest large yellow diamonds uncovered at Diavik.
Rio Tinto’s general manager of sales and marketing for its diamonds business, Patrick Coppens said “This combination of a rare yellow Diavik diamond and Argyle Pink Diamonds, the rarest diamonds in the world, is a special moment in the history of Rio Tinto’s unique place in the natural fancy coloured diamond industry.
He paid tribute to luxury jeweler Musson for creating the ring. The Diavik Midnight Sun takes its inspiration from the exquisite natural phenomenon that occurs when the sun is seen at midnight in the Arctic, exhibiting beautiful golden and pink hues.
11.15-Carat Internally Flawless Pink Diamond Could Fetch $21 Million
11.5-carat Williamson Pink Star diamond
The second largest internally flawless fancy vivid pink diamond to ever appear at auction was unveiled Wednesday in London by Sotheby’s. The 11.15-carat Williamson Pink Star will be sold in a single-lot auction in Hong Kong on October 5. Its estimate is $21 million.
The auction house says it has the potential to set a new per carat price record for a fancy vivid pink diamond.
“We do have the confidence that it will find a great collector and have the interest of multiple parties,” Wenhao Yu, chairman of Jewellery and Watches at Sotheby’s Asia, told Forbes on Tuesday. “It has the potential to reach a very strong price.”
He adds, “This diamond truly checks all the boxes. It has the best qualities you can have in a pink diamond.”
The current price per carat auction record for a fancy vivid pink diamond is $2,656,909 for the 18.96-carat Winston Pink Legacy, sold in 2018 by Christie’s Geneva. The largest internally flawless, fancy vivid pink diamond offered at auction is the 59.60-carat CTF Pink Star. It was sold by Sotheby’s Hong Kong in 2017 for $71.2 million, a world record for any gem or jewel sold at auction.
Yu compares the Williamson Pink Star to an exceptional work of art.
“We timed this lot to be offered between Sotheby’s modern and contemporary art auctions. That’s because instead of offering just another important diamond, we view this diamond as a work of art from mother earth and a wonder of nature,” Yu says. “It’s comparable to a Monet or a Picasso and is even more rare.”
The Williamson Pink Star is the second largest internally flawless fancy vivid pink diamond
The Williamson mine is one of the oldest operating diamond mines in the world, famous for producing what is described as “bubblegum” pink diamonds, according to the auction house. One of the best-known diamonds from the mine is the 23.6-carat Williamson Pink Diamond fashioned into a brooch by Cartier and owned by Queen Elizabeth II.
“We wanted to relate the important provenance of the Williamson mine when naming the diamond,” Yu says. “The unique saturated pink color is one of the important qualities of diamonds from this mine. It is an honor for us that after so many decades another important pink diamond comes from the Williamson mine and we can offer it at auction.”
The cushion-shaped diamond was crafted from a 32.32-carat rough diamond by Diacore, a diamond manufacturer that specializes in crafting rare, exceptional fancy-colored diamonds. The company purchased the gem in late 2021 for $13.8 million. Yu says crafting the diamond is just as important as discovering it, and Diacore is one of the few companies in the world capable of cutting and polishing such an important gem.
The Williamson Pink Star is mounted in an 18k gold ring flanked by trapeze
“Not every rough can yield a diamond of this high quality so we should also give credit to Diacore,” he says. “They really made cutting and polishing into an art. They are very skilled and experienced with the best technology and a lot of courage. It’s rare to have a vivid pink color. It’s rarer when it’s over 10 carats and even more rare if it’s internally flawless. It’s luck to find this kind of diamond that was formed underground for millions of years, and it takes a great amount of art and creativity to fashion it into a gorgeous stone with so many exceptional qualities.”
Pink diamonds are among the rarest colors to occur naturally in diamonds. Of all the diamonds submitted to the Gemological Institute of America (which analyzes and grades diamonds), fewer than 3% are classified as colored diamonds, and fewer than 5% of those are considered predominantly pink.
The Argyle Mine in Australia, before it was retired in 2020 after exhausting its supply of gem-quality diamonds, produced more than 90% of the world’s pink diamonds. The absence of pink diamonds from this mine makes important pink diamonds like the one being offered even more rare, Yu says.
“Pink diamonds are still growing in demand in the market, and this now makes the Williamson Pink Star even more sought after,” he says.
The diamond is being presented in an 18k gold ring flanked by trapeze-cut diamonds and embellished with brilliant-cut diamonds.
London is the first stop where the diamond will be viewed by the public. It will then travel to Dubai, Singapore and Taipei before the final viewing and sale in Hong Kong.
