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338:. Cut from a 460 carats (92 g) rough, the shield-shaped gem boasts 92 brilliant facets. While internally flawless, the stone has a slight imperfection on the surface that is imperceptible to the human eye, the auction house said. It is the largest colourless diamond to appear on the auction market in the last 18 years, Christie's said. Only three diamonds of more than 100 carats (20 g) have appeared at auction. All were sold in
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blue diamonds. A similar 26.6-carat (5.32 g) blue rough diamond recovered by Petra in May 2009 was cut into a near perfect stone and fetched just under $ 10m at
Sotheby's. Another deep-blue diamond from Cullinan was auctioned for $ 10.8m last year and set a world record for the value per carat.
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On 18 April 2013 a 25.5-carat (5.10 g) blue rough diamond was recovered by Petra
Diamonds at its Cullinan mine. According to experts it could be worth more than $ 10m. The find gave a boost to Petra's share price. The mine has produced hundreds of large stones and is famed for its production of
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On 13 June 2014, Petra
Diamonds announced that a blue diamond of 122.52 carats (24.504 g) was found at the Cullinan mine. The diamond, though not yet appraised, is expected to fetch more than 35 million dollars, which was the approximate value of the Heritage Diamond, also found in that mine.
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On 21 January 2014, Petra
Diamonds announced recovery of a 29.6-carat (5.92 g) blue diamond. According to the current CEO, Johan Dippenaar, it is the "most significant blue diamond" to be recovered by Petra Diamonds. According to Analyst Cailey Barker at broker Numis it "could fetch between $
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In
September 2009, a 507-carat (101.4 g) diamond was found, and is ranked as one of the 20 biggest high quality diamonds ever discovered. Petra Diamonds sold it for $ 35.3 million on 26 February 2010, breaking a record as the highest price ever paid for a rough diamond.
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is the largest rough gem-quality diamond ever found, at 3,106.75 carats (621.350 g). It was found by
Frederick Wells, surface manager of the Premier Diamond Mining Company in Cullinan, Gauteng, South Africa, on 25 January 1905. The stone was named after
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The mine has produced over 750 stones that are greater than 100 carats (20 g) and more than a quarter of all the world's diamonds that are greater than 400 carats (80 g). It is also the only significant source of
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In May 2008, a sparkling shield-shaped 101.27-carat (20.254 g) diamond (about the size of a ping pong ball) mined from the
Premier Mine sold for more than US$ 6.2 million at
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foundation – 26% stake, comprising a 12% stake held by an employee share trust and a 14% stake held by
Thembinkosi Mining Investments (Pty) Ltd
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Petra
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There have been various other notable diamonds that have been recovered from
Premier Mine. These include:
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15m and $ 20m at auction". Decision on what is to be done with the stone will come next week.
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in November 2003 in celebration of its centenary. The mine is a carrot-shaped
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Petra Diamonds – 37% stake, with an option to increase to 60%
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of 32 hectares (79 acres). The mine rose to prominence in 1905, when the
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by A.R.Williams former general manager of De Beers (900-page overview).
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580:"'Exceptional' 29.6-carat blue diamond found in Petra's Cullinan mine"
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Diamond Mines of South Africa, Premier Diamond mine overview + images
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On 16 July 2008, Petra announced the completion of the acquisition.
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598:"Rare Blue Diamond found in South Africa's Cullinan mine"
558:"Mining company in South Africa finds rare blue diamond"
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It was named the "Star of Josephine" by its new owner
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Al Rajhi Holdings W.L.L. – 37% stake
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713:De Beers sells South African Cullinan Diamond Mine
628:"Petra finds 'exceptional' 122-carat blue diamond"
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342:. Naming rights were granted to the new owner.
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249:. Established in 1902, it was renamed the
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765:City of Tshwane Metropolitan Municipality
483:"Who paid record price for huge diamond?"
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206:Premier Mine, South Africa, before 1903
688:: CS1 maint: archived copy as title (
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515:from the original on 29 September 2009
608:from the original on 16 November 2017
534:Khám phá viên kim cương mới tuyệt đẹp
237:, 40 kilometres (25 mi) east of
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69:Location of mine within South Africa
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326:– 69 carats (13.8 g) polished
196:Petra Diamonds Cullinan Consortium
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750:Underground mines in South Africa
638:from the original on 13 June 2014
509:"'Spectacular' new diamond found"
320:– 755 carats (151.0 g) rough
290:, the owner of the diamond mine.
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314:– 275 carats (55.0 g) rough
308:– 426 carats (85.2 g) rough
301:– 353 carats (70.6 g) rough
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511:. BBC News. 29 September 2009.
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745:Diamond mines in South Africa
16:Diamond mine in South Africa
427:"Cullinan – Petra Diamonds"
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382:Black Economic Empowerment
362:Purchase by Petra Diamonds
715:(dead link 30 March 2019)
560:. BBC News. 18 April 2013
487:The Sydney Morning Herald
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318:Golden Jubilee Diamond
312:The De Beers Centenary
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366:On 22 November 2007,
324:Taylor-Burton Diamond
251:Cullinan Diamond Mine
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129:25.67250°S 28.51250°E
760:Geography of Gauteng
604:. 21 January 2014.
433:on 9 September 2012
406:South Africa portal
288:Sir Thomas Cullinan
277:Notable discoveries
134:-25.67250; 28.51250
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755:Economy of Gauteng
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225:is an underground
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33:The open pit, 2011
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299:Premier Rose
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259:surface area
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223:Premier Mine
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102:South Africa
63:Premier Mine
22:Premier Mine
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163:Underground
132: /
108:Coordinates
739:Categories
674:27 January
467:23 January
392:References
332:Christie's
257:and has a
145:Production
120:28°30′45″E
117:25°40′21″S
564:1 October
519:1 October
493:1 October
336:Hong Kong
215:Headframe
684:cite web
636:Archived
632:BBC News
606:Archived
602:BBC News
513:Archived
368:De Beers
306:Niarchos
239:Pretoria
235:Cullinan
154:Diamonds
150:Products
88:Province
82:Cullinan
78:Location
39:Location
642:13 June
612:20 June
227:diamond
193:Company
178: (
168:History
98:Country
92:Gauteng
340:Geneva
173:Opened
668:(PDF)
661:(PDF)
188:Owner
690:link
676:2014
644:2014
614:2018
566:2013
521:2013
495:2013
469:2014
439:2013
304:The
297:The
281:The
221:The
180:1902
176:1902
160:Type
334:in
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682:{{
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416:^
380:A
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
