blue diamond – Page 3 – The Diamond Certification Laboratory of Australia (DCLA)

Blue rough diamond fetches $40 million

Petra Diamonds Ltd. sold a 39.3-carat blue gem for more than $40 million, making it one of the most expensive rough diamonds ever.

The small miner sold the exceptional Type IIb blue diamond to a joint venture between top producer De Beers and Diacore, a trading company owned by the billionaire Steinmetz family, it said Monday. The stone fetched just over $1 million per carat and is the most expensive gem Petra has ever sold.

Petra found the diamond at the Cullinan mine in South Africa in April. The mine, once owned by De Beers, is famous for both large and blue stones and was where world’s biggest diamond was found in 1905. Blue stones are among the most rare and valuable.

The sale is good news for Petra, which was forced to restructure its debt last year, when the Covid-19 crisis brought the industry to a standstill at a time when the company was already facing a mountain of debt and falling diamond prices. The shares, which were once worth more than $1.5 billion, closed up 1.1% on Monday.

Petra puts “exceptional” 39-carat blue diamond up for sale

39.34 carat blue diamond recovered by Petra South Africa

South Africa’s Petra Diamonds has put a 39.34 carat Type IIb gem recovered at its iconic Cullinan mine in April up for sale, with viewings beginning June 15.

The company said the diamond of “exceptional quality” in terms of both its colour and clarity, will be showcased in Antwerp, Dubai, Hong Kong and New York.

Petra, which anticipates that the diamond will be sold via a special tender, said that biddings via its online platform will close on July 12.

While it didn’t set a price range for the stone, the miner said high-quality blue diamonds like the one for sale usually fetch the highest values.

Petra’s Blue Moon of Josephine diamond, cut from a 29 carat rough blue diamond, sold for $48.5 million in 2015.

The figure corresponds to a price of $4 million per carat, which remains the world record price per carat ever paid for a diamond.

Cullinan is known as the world’s most important source of blue diamonds, as well as being the birthplace of the 3,106-carat Cullinan diamond, which was cut to form the 530-carat Great Star of Africa. The operation also yielded the 317-carat Second Star of Africa. They are the two largest diamonds in the British Crown Jewels.

Source: Mining.com

Fancy Colour Diamond Trio Fetches $8M at Christie’s

The Perfect Palette diamonds. Christie’s

Three rings featuring diamonds with fancy-vivid color stole the show at the Christie’s Magnificent Jewels auction, selling for more than $8 million combined.

The trio of jewels, called the Perfect Palette, achieved a total of $8.4 million at the New York sale, Christie’s said Tuesday. A 2.17-carat, fancy-vivid-purplish-pink diamond ring brought in $3.5 million, beating its $2.5 million high estimate, while a 2.13-carat, fancy-vivid-blue diamond ring sold for $2.7 million, toward the upper end of its valuation. The third — a 2.34-carat, fancy-vivid-orange diamond ring — went for $2.2 million, just under its top estimate at the April 13 sale. The entire auction garnered $35 million, with 94% of items on offer finding buyers.

Another high earner was a pear brilliant-cut, 38.04-carat, D-flawless, type IIa diamond ring, which fetched $3 million. A Burmese ruby ring by F.J. Cooper, a prominent Philadelphia jeweler, went for $1.7 million. Both pieces fell within their presale estimates.

Other notable items included an oval modified brilliant-cut, 25.55-carat, fancy-vivid-yellow, VS1-clarity diamond ring, which sold for $1.7 million, smashing its $1.2 million high estimate. An emerald-cut, 14.50-carat, D-color, internally flawless, type IIa diamond ring also shattered its $1 million upper valuation, selling for $1.4 million at the auction.

A diamond and onyx Serpenti wristwatch, donated by Bulgari, fetched $50,000, within estimates. Proceeds from the timepiece will benefit the Elizabeth Taylor AIDS Foundation.

Participants at the sale originated from 40 countries across five continents, Christie’s noted. The auction house is still holding its Online Jewels sale, which began on April 8 and will run through April 20. It features a selection of items from Bulgari, Cartier and Elsa Peretti for Tiffany & Co., among others.

Source: Diamonds.net

De Beers Buys Petra Blue Diamonds for $40M

De Beers has purchased five rough blue diamonds from Petra Diamonds for more than $40 million in partnership with one of its sightholders.

The miner bought the Letlapa Tala collection together with South African wholesaler and manufacturer Diacore for $40.4 million, split equally between the two companies. The type IIb stones, which originated from Petra’s Cullinan mine in South Africa, weigh a total of 85.6 carats, with the individual diamonds ranging from 9.61 to 25.75 carats, Petra said Wednesday.

The sale price at the November 24 tender exceeded analysts’ predictions. Liberum believed the stones would fetch “in the region of $30 million to $40 million,” while Berenberg predicted approximately $26 million, they told Rapaport News.

“The result of this special tender affirms the very high value placed on blue diamonds,” said Petra CEO Richard Duffy. “We believe this to be the first time that five rough blue diamonds of significant size, color and clarity have been offered for sale at one time, and we are delighted that the collection has been bought in its entirety.”

Diacore, which specializes in manufacturing rare, fancy-color diamonds, has worked with De Beers before. It previously cut the miner’s 203.04-carat De Beers Millennium Star, and has also worked on other well-known stones, such as the CTF Pink Star, a 59.60-carat pink bought by Hong Kong jeweler Chow Tai Fook for $71.2 million in 2017. The manufacturer, with cutting facilities in Botswana, South Africa and Namibia, was also one of the pilot participants in De Beers’ Tracr blockchain initiative.

“We are excited and humbled to have the opportunity to unlock the unparalleled beauty of these rare and extraordinary natural diamonds and share them with the world,” said Paul Rowley, executive vice president of diamond trading at De Beers. “Cullinan has produced some of the most beautiful diamonds the world has ever seen, and these blue diamonds are no exception.”

De Beers and Diacore will select expert craftsmen to study and work with the diamonds before presenting them to the public, De Beers added.

De Beers previously owned the Cullinan mine. It sold the deposit to Petra for $149 million in 2007.

Source: Diamonds.net

Rare Rough Blue Diamonds

Recovered from the famous Cullinan Mine in South Africa, these blue diamonds are among the world’s most expensive

Five blue diamonds have been recovered from Petra Diamonds’ famous Cullinan mine in South Africa.

They are among the world’s most expensive diamonds, and were formed deep within the Earth about 400 miles below the surface, which is four times as deep as white diamonds. The element boron, which is what gives the stones their blue colour, combines with carbon and crystallises under extreme pressure and heat.

The sales tender for the five Type IIb blue diamonds will close later this month, on November 24, following viewings in Antwerp, Hong Kong and New York. They weigh 25.75, 21.25, 17.57, 11.42 and 9.61 carats, respectively.

Type II diamonds contain no detectable nitrogen in their chemical structure, which means they boast exceptional transparency.

Blue diamonds are so rare that most people, even in the jewellery industry, never have a chance to see one. It’s incredibly unusual that these five diamonds were all recovered within the space of one week’s production in September.

Their birthplace, the Cullinan mine, is one of the most important sources of blue diamonds. It’s also the origin of the 3,106 carat Cullinan diamond, which was cut to form the 530 carat Great Star of Africa and the 317 carat Second Star of Africa, which are set into the British Crown Jewels.

It’s the first time that five rough blue diamonds have been offered for sale at the same time. In 2013, a 25.5 carat blue diamond was sold by Petra Diamonds for over US$16.9 million.

Source: asiatatler

Petra to sell blue diamonds recovered at Cullinan

A 20.08-carat Type IIb blue diamond recovered at Cullinan.

Petra Diamonds (LON: PDL) announced the launching of a special tender process for the Letlapa Tala Collection, which comprises five blue diamonds sourced from the Cullinan mine in South Africa.

Cullinan is known as the world’s most important source of blue diamonds, as well as being the place of birth of the 3,106-carat Cullinan diamond, which was cut to form the 530-carat Great Star of Africa and the 317-carat Second Star of Africa, being the two largest diamonds in the British Crown Jewels.

In a press release, Petra said that the name of the new collection actually means ‘blue rock’ in Northern Sotho (commonly known as Pedi), the predominant language spoken in the Cullinan area.

CULLINAN IS KNOWN AS THE WORLD’S MOST IMPORTANT SOURCE OF BLUE DIAMONDS

The collection consists of five Type IIb blue diamonds of 25.75, 21.25, 17.57, 11.42 and 9.61 carats, respectively. Type II diamonds contain no detectable nitrogen in their chemical structure and tend to display exceptional transparency. Type IIb stones contain a small amount of boron, which is what determines their blue colour.

“Blue diamonds are so rare that most people working in the diamond industry have never even seen one,” the media release states. “There are no official statistics on their recovery, so it is therefore even more unusual that these five spectacular stones were all recovered within the space of one week’s production in September 2020.”

According to Petra, this is likely to be the first time that five blue rough diamonds have ever been offered for sale at one time, with buyers being offered the chance to bid either on individual stones, more than one, or for the entire collection.

The Letlapa Tala gems will be available for viewings in Antwerp from October 25 to November 1; Hong Kong from November 5 to November 10; and New York from November 16 to November 20, 2020.

Source: Mining.com

Petra Diamonds recovers five rare large high-quality blue diamonds at Cullinan Mine

South Africa’s Petra Diamonds, which put itself up for sale in June, announced on Wednesday it had found five high-quality blue diamonds, but toned down the news by saying the discovery won’t help turn around its fortunes.

Petra, which has been hit by a triple whammy of weak market conditions, power emergencies in the home country and covid-19, found the Type IIb blue diamonds at its flagship Cullinan mine.

The high quality stones, in terms of both their colour and clarity, range in size from 9.6 carats to 25.8 carats, the company said.

The miner didn’t indicate the diamonds’ potential value but said it is considering sale options.

“These finds, whilst a positive development, will not have a material impact on the likely terms of the required long-term solution to improve the group’s capital structure, nor the significant level of equity dilution that existing shareholders are likely to experience in connection with its implementation,” Petra said in the statement.

The company also warned that measures to improve its capital structure could result in significant equity dilution.

Blue stones are among the rarest and most valuable and have lately fetched higher prices than white diamonds. Last year, Petra sold a 20.08-carat blue gem for $14.9 million, or about $741,000 per carat.

“Flexible” approach to sales
Petra was already struggling when the covid-19 pandemic added further pressure to a sector that was just beginning to show some green shots.

The miner tried in 2019 to turn around its fortunes after piling up debt to expand its flagship Cullinan mine in South Africa. The renowned mine, where the world’s largest-ever diamond was found in 1905, produces about a quarter of the world’s gem-quality diamonds. It is also the source of the vast majority of blue stones.

In May, Petra failed to make an interest payment on a $650 million bond, but won some breathing space from creditors who said they would not declare a default until August.

The diamond producer also cancelled May and June tenders because of travel restrictions and low demand from the midstream. While it originally expected to hold a tender in September, Petra said it was still evaluating the optimal route to market for the stones it mines. It added it would release further information to its customer base once a decision about the marketing plan to follow had been made.

For now, the company is taking a “flexible” approach to selling diamonds in light of ongoing travel restrictions triggered by the global pandemic.

Despite the numerous challenges, Petra is targeting a ramp-up to pre-covid-19 production levels. It added it will disclose production targets for 2021 once it reaches a “sustainable level of operational stability.”

Three exceptional diamonds sell at auctions.

A fancy vivid pink Diamond and a fancy vivid blue diamond

The first a heart shaped gem was a 5.04 carat fancy vivid blue heart modified brilliant cut diamond with VS2 clarity. The stone is mounted on a platinum ring flanked by two pear-shaped diamonds. It achieved more than $10.5 million USD, making it the top lot at the Sotheby’s auction.

The second was a 4.49 carat heart modified brilliant cut, internally flawless, fancy vivid pink diamond. It’s mounted on an 18k white gold ring flanked by pear shaped diamonds. It achieved more than $8.1 million USD. at the high end of its estimate, making it the number three lot of the sale.

The buyer or buyers for both lots is unknown at this time and there is no indication whether a single person purchased both fancy colored diamonds.

A 12.11 carat fancy intense blue diamond sold for $15.9 million USD at Christie’s Hong Kong Magnificent Jewels auction. The internally flawless marquise shaped, brilliant cut gem was sold during a long, drawn out bidding process that was gradually narrowed down to two phone bidders, as seen through the auction house’s live stream.

It blew past its $12.3 million high estimate with a hammer price of $13.6 million which doesn’t include the buyer’s premium. The price per carat was $1.31 million.

Two Fancy Colored Heart Shaped Diamonds

Two hearts, one blue, the other pink, will appear at Sotheby’s Hong Kong Magnificent Jewels auction as if they were always meant to be together. They will be sold separately during the July 10 sale at the Hong Kong Convention & Exhibition Centre. Combined, their high estimate is $18.5 million.

The first is a 5.04 carat fancy vivid blue heart modified brilliant-cut diamond. The gem has a VS2 clarity grade, according to its lab report. The heart-shaped gem is mounted on a platinum ring flanked by two pear-shaped diamonds. Its estimate is between $7.7 million and $9.7 million.

Its would-be partner is a 4.49-carat heart modified brilliant-cut, internally flawless, fancy vivid pink diamond. It’s mounted on an 18k white gold ring flanked by pear-shaped diamonds. Its estimate is between $7.5 million and $8.8 million.

3ct. Blue Diamond to Lead Phillips Sale

Phillips will feature a blue diamond ring by Tiffany & Co. at its upcoming New York Jewels auction, expecting it to fetch up to $2.5 million.

The cut-cornered square modified brilliant-cut, 3.02-carat, fancy-intense-blue, VS2-clarity diamond ring will lead the December 9 sale, the auction house said Wednesday.

An assortment of colorless diamonds will also go under the hammer, including an emerald-cut, 11.34-carat, D-color, VVS2-clarity, type IIa diamond ring by Harry Winston. The piece, which is flanked by two triangle-shaped diamonds weighing a total of 1.45 carats, has a presale estimate of $500,000 to $800,000. A 1925 Art Deco ring by Spaulding & Co., featuring a modified marquise brilliant-cut, 7.69-carat, D-color, VS2-clarity, type IIa diamond, will go under the hammer for $150,000 to $250,00, while a cut-cornered rectangular modified brilliant-cut, 13.05-carat diamond ring is estimated at $80,000 to $120,00.

Other notable items include a fancy-color diamond and gold necklace, featuring a pear modified brilliant-cut, 3.01-carat, fancy-blue-grey diamond, estimated at $250,000 to $450,000. A cut-cornered square step-cut, 16.23-carat, fancy-intense-yellow, VS1-clarity diamond ring by De Beers carries a presale estimate of $220,000 to $400,000.

Source: Diamonds.net