A blue diamond weighing 5.53 carats failed to find a buyer at Sotheby’s Geneva on Wednesday despite being billed as the star of the auction.
The cushion brilliant-cut, fancy-vivid-blue diamond is part of an eight-piece group called the De Beers Exceptional Blue Collection, which Sotheby’s has spread between its various Magnificent Jewels sales. No bids matched the stone’s threshold price for sale, according to a post-auction report by the Fancy Color Research Foundation (FCRF). The piece carried a presale estimate of $11 million to $15 million.
“The blue is an exceptional stone in every sense,” Sotheby’s told Rapaport News Thursday. “It attracted significant interest prior to yesterday’s sale. While we didn’t get to see it sell in the room last night, we are confident it will find a new home very soon.”
Meanwhile, a number of items set records at the November 9 sale, including a 20.16-carat sapphire and diamond ring from Cartier. That piece, which fetched $2.8 million against a high estimate of $2 million, saw a record price per carat for any blue sapphire of Burmese origin ever sold at auction. A 20.58-carat, pink sapphire ring also broke the record for per-carat price, bringing in $1.9 million, or $91,690 per carat, well above its $808,368 upper price tag. A pink sapphire and diamond brooch weighing 92.01 carats by Jean Schlumberger sold for $1.8 million, outstripping its $505,278 high estimate and setting a record price for a piece of jewelry by the designer.
Another notable item at the sale was a pair of unmounted oval-cut, D-flawless diamonds weighing 20.03 and 20.19 carats. The duo fetched $4.2 million, within estimates. A step-cut, 33.13-carat, D-color, VVS1-clarity diamond ring by Cartier brought in $2.9 million, also within its expected range.
The entire Geneva Magnificent Jewels auction garnered $50 million. Sotheby’s will offer two more blue diamonds from the De Beers collection at its upcoming New York Magnificent Jewels sale on December 7.
Lucara Diamond Corp.’s sales dropped in the third quarter as the company supplied fewer large and expensive stones from its lucrative Karowe mine in Botswana.
Revenue fell 31% year on year to $49.9 million, while net profit slumped 86% to $1.8 million, Lucara reported Wednesday.
Sales of rough from Karowe declined 36% to $46.5 million, with volume down 15% at 99,301 carats and the average price falling 43% to $337 per carat. The remaining revenue came from sales of third-party goods on Lucara’s Clara online platform.
Management blamed a decrease in the number of high-value diamonds the company sold to HB Antwerp through the pair’s supply agreement. The Belgian manufacturer is contracted to buy all Karowe rough of 10.8 carats or more, with Lucara receiving a proportion of the final polished proceeds.
In the third quarter a year earlier, Lucara sold four pink diamonds and two white, type IIa stones — weighing 393.5 and 257.5 carats — to HB. As a result of the unfavorable comparison, revenue from the agreement plummeted 46% to $27.1 million.
“Despite the overall decrease in revenue recognized in [the third quarter], diamond-market fundamentals continued to support healthy prices as steady demand and some inventory shortages were reported,” Lucara said. Fluctuation in the availability of 10.8-carat production is expected, it added.
Output from Karowe slid 19% year on year to 78,879 carats for the quarter.
Rough diamonds sales by Debswana Diamond Company jumped 37.5% in the first nine months of 2022, statistics released by the Bank of Botswana showed Tuesday, driven by steady demand for jewellery.
A joint venture between Anglo American unit De Beers and Botswana government, Debswana sells 75% of its output to De Beers with the balance taken up by state-owned Okavango Diamond Company.
Debswana’s January-September sales rose to $3.578 billion from $2.602 billion a year earlier, data from the central bank showed.
In Botswana’s pula currency, Debswana’s rough diamond sales rose 52.5% to 43.237 billion pula reflecting a stronger dollar in the period.
In dollar and pula terms, the nine-month sales top the company’s full-year results in 2021 when sales totalled $3.466 billion and 38.134 billion pula.
Debswana accounts for almost all diamonds produced in Botswana with Lucara’s Karowe mine being the only other operating diamond mine in the country.
Botswana generates about 30% of its revenue and 70% of its foreign exchange earnings from diamonds.
However, De Beers sees the risk of the market slowing down in the coming months due to a deterioration in global economic conditions, reduced consumer spending and continued Chinese covid-19 lockdowns.
“In line with normal seasonal trends, we anticipate that sales in the final quarter of the year will be affected by the normal temporary closure of cutting and polishing factories for the religious holidays in India,” parent firm Anglo American said last week.
De Beers will offer widened concessions to purchasers of larger rough diamonds at its upcoming sight as trading has slowed amid difficult market conditions.
The miner will increase its “buyback” allowance to 20% for 1-carat goods and up at the sale, which begins later this month, industry insiders told Rapaport News this week.
Buybacks are a mechanism enabling sightholders to sell 10% of stones back to De Beers after making their purchases. They are popular among clients when markets are weak, as customers can handpick the least profitable items and hope the miner will offer a good price. For De Beers, they provide a way of promoting sales without reducing prices.
Lockdowns in China and global economic uncertainty have spooked sections of the industry, with De Beers’ move reflecting a split in the market. Companies that usually buy 1-carat and larger rough destined for the Far East have reduced their purchasing, while top US and European brands continue to buy melee, supporting the trade in rough under 0.75 carats, dealers explained. In that context, the miner will maintain its usual 10% buyback allowance for rough under 1 carat.
“People actually did buy a lot [of the larger items] up till June [or] July this year, when they thought China would slowly start opening up again,” a market participant said. “That clearly hasn’t happened, and there are people now sitting on those goods.”
Sightholders are expecting De Beers’ next sales cycle — its ninth of the year — to bring the miner around $400 million after buybacks, compared with $500 million in September. The sight will run from October 31 to November 4. The December sight is also likely to be relatively small as southern African cutting factories shut for the holidays.
The October sight will take place amid the Diwali season in India, for which manufacturers are expected to implement extended production pauses of up to three weeks because of the sluggish market. Many of them have been trying to slash their inventories ahead of the holiday.
“De Beers is not too eager to reduce prices at this stage. I think they want to wait till early 2023 for that,” a sightholder predicted.
De Beers has released its sales schedule for next year, with the miner holding its usual 10 sights across the 12-month period.
The miner sells most of its rough to sightholders through a contract system under which clients make certain purchasing commitments in return for consistent supply. In April 2021, the miner introduced a new sales agreement offering more bespoke supply for manufacturers, dealers and retailers. Alrosa, which operates a similar system, has not yet published a 2023 schedule on its website.
The dates for De Beers’ sights in 2023 are as follows:
• Sight 1: January 16 to 20 • Sight 2: February 20 to 24 • Sight 3: March 27 to 31 • Sight 4: May 2 to 5 • Sight 5: June 5 to 9 • Sight 6: July 10 to 14 • Sight 7: August 14 to 18 • Sight 8: September 18 to 22 • Sight 9: October 23 to 27 • Sight 10: December 4 to 8
Sotheby’s will sell a group of eight fancy-blue diamonds from De Beers across its global Magnificent Jewels auctions, expecting the set to bring in more than $70 million.
The stones are cut in various shapes and range from 1.22 to 11.29 carats, with a total weight of 32.09 carats, Sotheby’s said last week. The polished originates from five rough blues that De Beers and Switzerland-based manufacturer Diacore purchased jointly from Petra Diamonds in November 2020. Diacore cut and polished those stones into eight diamonds over the past two years.
Sotheby’s will offer three stones from the eight-piece group, called The De Beers Exceptional Blue Collection, this year. The first, a cushion brilliant-cut, 5.53-carat, fancy-vivid blue diamond will go under the hammer at the Magnificent Jewels and Noble Jewels sale in Geneva on November 9, with a high estimate of $15 million. Meanwhile, the December 7 Magnificent Jewels sale in New York will feature a cushion brilliant-cut, 3.24-carat, fancy-vivid blue, internally flawless diamond estimated at up to $8 million. That jewel will be joined by a cushion-cut, 2.08-carat, fancy-intense-blue diamond with an upper price tag of $1.5 million.
“I have remained in awe of the De Beers Exceptional Blue Collection since the first moments I set eyes on it,” said Olivier Wagner, head of Sotheby’s Magnificent Jewels auctions in Geneva. “The market for colored diamonds and precious gemstones has never been stronger. [The diamonds] will, I am sure, captivate all collectors of exceptional gemstones.”
Sotheby’s will sell the remaining five diamonds at its spring 2023 Magnificent Jewels auctions. Those include a step-cut, 11.29-carat, fancy-vivid-blue estimated at up to $50 million; a step-cut, 4.13-carat, fancy-intense-blue expected to go for up to $3.5 million; and a cushion brilliant-cut, 3.10-carat, fancy-vivid-blue diamond with a high price of $5 million.
In April, Sotheby’s sold another De Beers blue diamond: a step-cut, 15.10-carat, fancy-vivid-blue, internally flawless stone that went for $57.5 million in Hong Kong.
The kimberlite cluster is located around 110km north-east of a Finsch diamond mine.
Diamond mining company Botswana Diamonds has secured a five-year prospecting licence on ground containing the Reivilo cluster of kimberlites in Barkley West, South Africa.
The kimberlite cluster is located around 110km north-east of a Finsch diamond mine owned by Petra Diamonds.
According to an exploration by the previous licence holder, the area holds a delineated a cluster of three kimberlite pipes, all within a 250m radius.
The prospecting licence is effective until June 2027.
Botswana Diamonds chairman John Teeling said: “When the ground became recently available, we immediately applied for the area.
“Botswana Diamonds management have long been aware of the diamond potential of this ground, and so we are delighted to have finally been awarded this high-profile exploration ground and look forward to updating shareholders in the near future on developments.”
Botswana Diamonds plans to finalise its exploration programme after carrying out a review of all the available data on the Reivilo cluster.
The firm said in a statement: “Samples of the drilling core produced G10 and eclogitic garnets, which are the optimal indicators for diamondiferous kimberlites.”
In July this year, Botswana Diamonds purchased an additional stake in the prospective Maibwe joint venture (JV) in Botswana.
The company holds a 51.7% stake in Siseko Minerals, which increased its stake in the JV from 29% to 50%.
At the time, Botswana Diamonds said it was involved in three companies focused on diamond exploration in Botswana, as well as owned assets in South Africa.
Maibwe currently holds 11 prospecting licences in Botswana’s area of the Kalahari Desert, which include several kimberlite pipes.
In October 2019, Botswana Diamonds received a mining permit for gravels and unprocessed stockpiles around the Marsfontein mine in South Africa via its associate, Vutomi Mining.
Lucapa Diamond Company has recovered a 160-carat, high-quality rough from its Lulo mine in Angola, the sixth-largest stone the deposit has yielded.
The company found the type IIa diamond at the same alluvial mining block from which it unearthed a 170-carat pink — the Lulo Rose — in July, Lucapa said last week. The new addition marks the 28th diamond over 100 carats from Lulo.
Recently, Lucapa transitioned to mining rough from the lezirias, or flood plain area, of the site, which has led to the recovery of larger diamonds, it said. In the past two months, the miner has found more than 100 special stones — those weighing over 10.8 carats — at the deposit, including four type IIa rough diamonds weighing 99, 81, 74 and 66 carats.
oronto-listed Mountain Province Diamonds will next week put on sale an “exceptional” coloured rough diamond, which it recovered from the Gahcho Kué mine, in Canada’s Northwest Territories.
The diamond, a 151.60 t octahedron of exceptional clarity, will be offered for sale alongside a selection of more than 90 individual special rough diamonds recovered from the company’s Canadian diamond mine.
The upcoming sale represents the biggest offering of +10.8 ct gem quality diamonds offered by the company to date.
“This important diamond represents a clear example of the Gahcho Kué mine’s ability to consistently recover high-quality gems of exceptionally large size. These gems are highly coveted by collectors around the globe not only for their beauty but increasingly, for their Canadian origin,” commented VP for diamond marketing ReidMackie.
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.
