Cullinan mine in South Africa – The Diamond Certification Laboratory of Australia (DCLA)

Petra Diamonds finds 342-carat rough at Cullinan mine

South Africa’s Petra Diamonds has recovered a 342.92-carat Type IIa white rough at its iconic Cullinan mine.

The company said the diamond is “exceptional” quality, in terms of both its colour and clarity, and that it will likely be sold at the September tender.

Petra fetched in March $12.2 million for a 299.3-carat Type IIA white diamond. That meant it obtained $40,701 per carat, which exceeds the $34,386/ct received for the 424.89-carat “Legacy of the Cullinan Diamond Mine” in May 2019.

Type II diamonds are found less frequently and are more valuable than Type I diamonds, as they have no measurable nitrogen impurities. This gives them exceptional transparency and brilliance.

Cullinan is known as the birthplace of the famed 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.

Cullinan is known as the world’s most important source of blue diamonds, such as the 39.34-carat stone Petra found in April and which sold for $40.2 million earlier this month. It was the company’s highest price ever for a single stone.

Source: Mining.com

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

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.”

Petra Sells 20ct. Blue Diamond for $15M

Petra Diamonds sold a 20.08-carat blue diamond from its Cullinan mine in South Africa for just under $15 million, it said Friday.

“We are very pleased with this result, which is in line with our expectations and confirms the resilience in the value of very high-quality blue diamonds,” said Petra CEO Richard Duffy. “We look forward to following this exceptional stone’s journey to its polished form.”

An undisclosed leading diamond company purchased the type IIb, gem-quality stone at tender in Johannesburg, South Africa, for $14.9 million, or $741,000 per carat.

“This is an encouraging result and shows that there is still strong demand for special diamonds,” noted investment bank Berenberg. “This is positive for Petra and puts extra cash on the balance sheet to work down debt…. We believe that today’s announcement is an undoubted positive for the shares.” Petra’s stock price rose 10% Friday.

The miner recovered the stone from the western portion of Cullinan in September. At the time, Berenberg estimated the selling price at $10 million to $15 million, while Shore Capital forecast it would fetch between $13 million and $15 million.

The company also plans to restructure its operation, implementing a flatter management structure, whereby the head of each mine will report directly to Duffy. As a result, the company has eliminated the position of chief operating officer, and Luctor Roode, who held that position, will leave Petra with immediate effect, the miner said.

Source: Diamonds.net