Category Archives: DIAMOND MINES

Another large diamond dug from Lulo mine in Angola… 227-carat white rough

Weighing 227 carats, latest gemstone from Lucapa’s Angolan diamond mine is its second largest to date

lucapa_227-carat-diamond image www.worldwidediamonds.info

Big, valuable gemstones that may eventually get cut into smaller diamonds keep getting discovered in Angola.

Today Lucapa Diamond Company Ltd. (ASX:LOM) said it has uncovered yet another epic rock from its Lulo mine, the second largest to be pulled from deep inside the earth at Lulo.

According to Lucapa, the 227-carat stone was found in a new mining block, indicating that the entire 50-kilometre length of the Cacuilo River is diamondiferous.The stone weighing 227 carats, discovered by Lucapa and its partners, Empresa Nacional de Diamantes EP, and Rosas & Petales, is a Type IIa D-Colour gem. It’s the same type of diamond that Lucapa recovered in September, in that case weighing 172.6 carats. The largest diamond to come out of the mine was a 404.2-carat monster that Lucapa unveiled a year ago, and which Lucapa later sold for AUD$22.5 million. The huge rock bested Angola’s previous record for its largest diamond, the Angolan Star, a 217.4-carat gem recovered in 2007.

According to Lucapa, the 227-carat stone was found in a new mining block, indicating that the entire 50-kilometre length of the Cacuilo River is diamondiferous. The alluvial diamond area is among Lucapa’s 3,000 square kilometre Lulo concession, and has so far only been about 20% explored by Lucapa and its partners. The gem was discovered using a new XRT large-diamond recovery circuit recently installed at Lulo.

So far Lucapa has unearthed seven diamonds over 100 carats from the Lulo diamond project. Located 150km from Alrosa’s Catoca mine, the world’s fourth largest diamond mine, Lulo hosts Type IIa diamonds which account for less than 1% of global supply.

Angola is the world’s No.4 diamond producer by value and No.6 by volume. Its industry, which began a century ago under Portuguese colonial rule, is successfully emerging from a long period of difficulty as a result of a civil war that ended in 2002.

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Henry Sapiecha

Mountain Province just found this massive diamond at Gahcho Kué in Canada

This 67.87-carat gem quality octahedron diamond is the largest of its kind recovered to date at the mine. (Image courtesy of Mountain Province Diamonds)

mountain-province-just-found-massive-diamond-at-gahcho-kue-67.87-carat gem quality octahedron diamond, image www.worldwidediamonds.info

Mountain Province Diamonds (TSX:MPV), which holds a 49% stake in Gahcho Kué, one of Canada’s newest diamond mine and the world’s largest of its kind in the last 13 years, has just found a massive gem at the operation.

The 67.87-carat gem quality octahedron diamond is the largest of its kind recovered to date at the mine.The company said the 67.87-carat gem quality octahedron rock, unearthed during production ramp-up, is the largest gem quality diamond recovered to date at Gahcho Kué, which is one of the world’s 10 biggest diamond mines.

The company’s President and CEO, Patrick Evans, said production ramp-up at the remote mine, which is also the world’s highest grade new diamond operation, is progressing well despite some recent disruptions caused by extremely cold conditions during December that impacted the mine’s conveyor systems. He added that Gahcho Kué was on track to achieve commercial production on schedule during the current quarter.

Situated almost 300 kilometres east of Yellowknife, in Canada’s Northwest Territories, the mine opened up in September last year and has so far provided a $341 million (Cdn$440 million) boost to the territories’ economy. It has also contributed a further $272 million (Cdn$350 million) to the rest of Canada, according to DeBeers, which holds a 51% stake in the mine.

Mountain Province also announced that its second diamonds sale of the year will take place in Antwerp, Belgium, from February 20 to March 1.

First blast at Gahcho Kué diamond mine image www.worldwidediamonds.info
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Merlin Mines has just unearthed Australia’s fifth largest diamond

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Merlin Diamonds (ASX:MED) has unearthed Australia’s fifth largest diamond from its namesake mine in Australia’s Northern Territory, currently in the ramp up phase.

The company said the 35.26 carat brown diamond was among a number of rough gems found at its Merlin mine, including a 14.6 carat brown rock as well as a number of smaller white diamonds.

Shares in the company jumped 7% to $0.015 after the announcement.

Last month, the company found a very rare blue coloured diamond, believed to be the first blue gem produced at Merlin.

merlin-blue-diamond-rough-image-www-worldwidediamonds-info

The blue diamond found last month. (Image courtesy of Merlin Diamonds)

Blue diamonds are even more unusual than pink ones, normally found at Rio Tinto’s Argyle mine in Western Australia.

In June last year, a massive intense blue diamond, known as The Cullinan Dream, fetched $25.4 million at a Christie’s auction in New York, breaking all records and becoming the most expensive gem of its kind ever sold at auction.

Australia’s largest diamond, a 104.73 carat stone, was discovered at Merlin, which was run by Rio Tinto and Ashton Mining between 1999-2003, before being acquired in 2014 by Merlin Diamonds, formerly North Australian Diamonds.

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Henry Sapiecha

Alrosa diamond sales less in October, but outlook is positive for the future

HANDLING-ROUGH-DIAMONDS image www.worldwidediamonds.info

Russia’s Alrosa (MCX:ALRS), the world’s top diamond producer by output in carats, said Tuesday that sales of rough gems dropped slightly in October, when compared to the previous month, though polished diamond sales remained unchanged.

Rough gems sales totalled $430.8 million in October, slightly less than the $435 million fetched in September, Alrosa said. Polished diamond sales came to $8.2 million.

De Beers, the world’s top producer by value, also reported Tuesday a drop in rough diamond sales —the lowest amount so this year.

But diamond producers are used to the up and downs in sales as they know the industry is seasonal, reaching its peak from November through to February.

Alrosa, which together with De Beers controls almost two-thirds of the diamond market, said earlier it intends to recover 1.7 million carats of diamonds a year from its Verkhne-Munskoye mine, which is slated to begin production in 2018.

The construction of that mine, which has 38.3 million carats of booked reserves, is part of a long-term development program that aims to increase Alrosa’s diamond production to 41 million carats by 2021.

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World’s largest new diamond mine opens in Canada

The Gahcho Kue diamond mine image www.worldwidediamonds.info

The Gahcho Kue diamond mine – one of the largest new mines in the world – has officially opened in Canada’s North West Territories.

The open-pit mine is located near the Arctic Circle, 280 km northeast of the province’s capital Yellowknife.

De Beers officially opened it, with chief executive Bruce Cleaver telling AFP, “It’s the largest diamond mine brought into production in the last 13 years and it’s the biggest outside South Africa.”

The company owns a 51 per cent of the joint venture, with the remainder owned by Canada’s Mountain Province Diamonds.

Its name comes from the local indigenous Chipewyan term for “big rabbit”.

The site is mainly accessible by air, with trucks only able to access via ice roads for a short period of time in winter months. An estimated 530 workers will be employed, and flown in for two week rotations.

It will produce 54 million carats of rough diamonds during its 12-year life.

With this new mine – the sixth to open in Canada in the last 20 years – the country becomes the fifth largest diamonds producer in the world by volume, as well as the third by value, recording more than $1.5 billion a year in exports.

Cleaver indicated a medium to long term growth in the demand for jewellery, which will still support diamond growth, although production is in decline.

China, the US, Japan, and India are the largest diamond purchasers, buying more than 70 per cent of diamonds sold each year.

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Production to begin at world’s largest new diamond mine

Mountain Province Diamonds has began ramping up its Gahcho Kué diamond mine in Canada’s Northwest Territories to commercial production, following its successful commissioning. 

The Gahcho Kué, a joint venture between Mountain Province Diamonds and De Beers Canada, is considered the world’s largest new diamond mine.

The project will begin commercial production in the first quarter of next year and produce an average of 4.5 million carats annually during its 12 year life.

First ore was produced on March 23 2016, with Mountain Province President and CEO Patrick Evans saying both the commissioning and ramp up activities was a “major achievement” for the joint venture.

During the ramp up commissioning phase, the site also produced two large gems; a 12.10 carat and 24.64 carat diamond.

Its first diamond sale is set to take place by the end of this year.

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Henry Sapiecha

Massive Cullinan Dream blue diamond fetches over $25m at auction

Price fetched makes it the most expensive fancy intense blue diamond ever sold at auction.

massive-cullinan-dream-blue-diamond-fetches-over-25m-at-auctionimage www.worldwidediamonds.info

The Cullinan Dream in the rough.

A 24.18-carat intense blue diamond known as The Cullinan Dream has just sold for $25.4 million at Christie’s Magnificent Jewels auction in New York, breaking all records and becoming the most expensive gem of its kind ever sold at auction.

The diamond, cut from a 122.52-carat rock found at Petra Diamond’s (LON:PDL) Cullinan mine in South Africa in 2014, is the largest of four blue diamonds made from the original.

The Cullinan Dream, a cut-cornered rectangular mixed-cut diamond, has been classified by the Gemological Institute of America as Type IIb. Those kinds of gems are very rare and account for less than one-half of 1% of all diamonds found in nature.

cullinam-dream-diamond-ring image www.worldwidediamonds.info

The Cullinan Dream is now a cut-cornered rectangular mixed-cut fancy intense blue diamond, weighing approximately 24.18 carats.

Type IIb gems contain a small amount of the element boron trapped in the crystal carbon structure during their formation that can give rise to a blue or grey coloration, Petra Diamonds said in a statement.

The mine is best known for the discovery of the Cullinan diamond, at 3,106 carats the largest rough diamond ever found. The gem was cut into two highly significant diamonds, which can be found in the British Crown Jewels.

Cullinan-Dream is now a cut-cornered rectangular mixed-cut fancy intense blue diamond, weighing approximately 24.18 carats.image www.worldwidediamonds.info

It is flanked on either side by a tapered baguette-cut diamond and set in a platinum ring, inscribed “Cullinan Dream”.

Since acquiring a majority stake in the mine in 2008, Petra Diamonds has found some high-profile blue diamonds, including “The Blue Moon of Josephine,” which sold in November for $48.5 million and “The Star of Josephine” — a 7.03 carat polished stone that sold in 2009 for $9.49 million, representing what at the time was a world record price per carat of $1.35 million.

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Henry Sapiecha

Alrosa unearths 241.21-carat diamond, one of largest ever found in Russia

alrosa-unearths-241-21-carat-diamond-one-of-largest-ever-found-in-russia image www.worldwidediamonds.info

The diamond was found the Nyurbinsky open-pit mine, in Nakyn. (Image courtesy of ALROSA)

Russia’s Alrosa (MCX:ALRS), the world’s top diamond producer by output in carats, has unveiled the discovery of a 241.21-carat rough diamond at its Nyurbinsky open-pit mine.

The diamond is one of the largest ever recovered in Russia.

The precious rock, said the company, is one of the largest rough diamonds ever recovered in Russia and the third largest among those found by the company’s Nyurba Mining and Processing Division.

The massive diamond measures 38.64 mm by 27.34 mm by 25.46 mm, and is translucent with a grey hue. Traces of dissolution–etching channels and caverns–are observed on the surface.

The intermediate and peripheral zones have large cracks and the crystal contains graphite and sulphide inclusions, Alrosa said.

alrosa-241carats-diamond image www.worldwidediamonds.info

The massive diamond measures 38.64 mm by 27.34 mm by 25.46 mm, and is translucent with a grey hue. (Image courtesy of ALROSA)

The Nyurbinsky has been in operations since 2001. Identified reserves January last year amounted to 36.9 million carats.

The Nyurba Mining and Processing Division is one of Alrosa’s youngest divisions, in charge of the Nakyn ore field as well as the Nyurbinsky and Botuobinsky open-pit mines.

The state-owned diamond miner may be privatized as soon as this summer, Russian Economy Minister Alexei Ulyukayev said at the St Petersburg International Economic Forum on Thursday, according to Reuters.

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Henry Sapiecha

Petra finds yet another huge diamond at its very productive Cullinan mine

petra-finds-another-massive-diamond-at-its-cullinan-mine 121.26-carat white rock image www.worldwidediamonds.info

London-listed Petra Diamonds (LON:PDL), already known for its major findings of recent months, has just unearthed a 121.26-carat white rock from its Cullinan mine in South Africa.

The gem is a Type II diamond “of exceptional colour and clarity”, the company said, and is “an outstanding example of the large, high quality diamonds for which the mine is known.”

The 121.26-carat white diamond, along with a number of other high quality stones, will be sold in the last tender of Petra’ 2016 financial year.While Petra did not provide a value estimation, it did say the freshly found rock, along with a number of other high quality stones, will be sold in the last tender of its 2016 financial year.

Last week, a 24.18-carat intense blue diamond known as The Cullinan Dream, which Petra found in 2014, sold for $25.4 million in New York, breaking all records and becoming the most expensive gem of its kind ever sold at auction.

The Cullinan mine, located north-east of Pretoria, has yielded several massive gems, including the largest rough gem diamond ever discovered — the Cullinan. The 3,106-carat stone was cut into two highly significant diamonds, which can be found in the Crown Jewels of the Queen of England.

Petra, which operates four diamond mines in South Africa and one in Tanzania, posted a loss for the first half of its financial year in February, due to fewer sales demand and a glut of supply that pushed rough diamond prices down by 9%.

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petra-diamonds-cullinan-mine image www.wordwidediamonds.info

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Henry Sapiecha

This is the 68-carat diamond Lucapa just found at its Lulo mine in Angola Africa

this-is-the-68-carat-diamond-lucapa-just-found-at-its-lulo-mine-in-angola image www.worldwidediamonds.info

Australia-based Lucapa Diamond (ASX:LOM) has recovered another major rock from trial mining at E46 alluvial terraces — a new area at its Lulo mine, in Angola.

The 68.1-carat gem-quality diamond is one of eight “significant” rocks found at the site, located about 10 km upstream from the alluvial Mining Block 8 and 6, from which Lucapa has been mining diamonds since the firm began commercial operations in January last year.

lucapa-diamond-at-lulo image www.worldwidediamonds.info

(Image courtesy of Lucapa Diamond)

According to the miner, the finding highlights the potential for widespread recovery of large gems from its Lulo mine, considering the largest individual diamond recovered from the initial exploration bulk sampling phase conducted in the area weighed just 6.9 carat.

Lulo, about 700 kilometers (435 miles) east of Angola’s capital Luanda, is a joint venture between the company and the Angolan government. Lulo is located 150km from Alrosa’s Catoca mine, the world’s fourth largest diamond mine.

The mine hosts type-2a diamonds which account for less than 1% of global supply and, according to Lucapa, the world’s most famous large, white, flawless diamonds belong to this category.

lucapa-exploration-at-lulo-map image www.worldwidediamonds.info

(Image courtesy of Lucapa Diamond)

Angola is the world’s No.4 diamond producer by value and No.6 by volume. Its industry, which began a century ago under Portuguese colonial rule, is successfully emerging from a long period of difficulty as a result of a civil war that ended in 2002.

The government has recently reduced taxes and cut state ownership requirements as it seeks to rekindle the industry after the global financial crisis forced mines to close.

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Henry Sapiecha

Petra Diamonds just sold this ‘exceptional pink’ rough gem for a whopping $15m

petra-diamonds-just-sold-this-exceptional-pink-gem-for-15m image www.worldwidediamonds.info

Petra Diamonds (LON:PDL) shares recovered some sparkle Thursday after the company announced it had sold an ‘exceptional pink’ diamond for $15 million, or $463,965 per carat.

The stock was up more than 2% in afternoon trading in London to 109.75p, and it has gained about 25% to date since the beginning of 2016.

It was found in November at Petra’s Williamson mine in Tanzania.The 32.33-carats diamond was recovered in November from the firm’s Williamson mine in Tanzania.

Golden Yellow Diamonds purchased the rock on behalf of Israel-based diamond manufacturer, M.A. Anavi Diamond Group, which specializes in large and unique coloured diamonds.

Petra Diamonds, known for major findings in recent months, said it would retain a 10% interest in the polished proceeds.

The company, which owns the Finsch and Cullinan mines, posted last month a loss for the first half of its financial year as fewer sales demand and a glut of supply pushed rough diamond prices down by 9%.

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Henry Sapiecha