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Premier Mine
The Premier Mine is an underground diamond mine owned by Petra Diamonds in the town of Cullinan, east of Pretoria, Gauteng Province, South Africa. Established in 1902, it was renamed the Cullinan Diamond Mine in November 2003 in celebration of its centenary. The mine is a carrot-shaped volcanic pipe and has a surface area of . The mine rose to prominence in 1905, when the Cullinan Diamond – the largest rough diamond of gem quality ever found – was discovered there. The mine has produced over 750 stones that are greater than and more than a quarter of all the world's diamonds that are greater than . It is also the only significant source of blue diamonds in the world. Notable discoveries The Cullinan Diamond is the largest rough gem-quality diamond ever found, at . 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 Sir Thomas Cullinan, the owner of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cullinan Diamond
The Cullinan Diamond is the largest gem-quality rough diamond ever found,Scarratt and Shor, p. 120. weighing (1 lb 5.92 oz), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the owner of the mine. In April 1905, it was put on sale in London, but despite considerable interest, it was still unsold after two years. In 1907, the Transvaal Colony government bought the Cullinan and Prime Minister Louis Botha presented it to Edward VII, King of the United Kingdom, who had it cut by Joseph Asscher & Co. in Amsterdam. Cullinan produced stones of various cuts and sizes, the largest of which is named Cullinan I or the Great Star of Africa, and at (3.74 ounces) it is the largest clear cut diamond in the world. The stone is mounted in the head of the Sovereign's Sceptre with Cross. The second-largest is Cullinan II or the Second Star of Africa, weighing , mounted in the Imperial State Crown. Both ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cullinan, Gauteng
Cullinan is a small town in the Gauteng province of South Africa. It is located east of the city of Pretoria along the diamond route and is heavily reliant on tourism and the mine that dominates the skyline. The town is named after diamond magnate Sir Thomas Cullinan. History In 1898 Sir Thomas Cullinan was handed a three carat diamond found along a farm fence. He studied the area and came to the conclusion that the diamond was washed down from a nearby hill. Sir Cullinan made an attempt to buy the land from the owner, Joachim Prinsloo, but did not succeed. After Prinsloo's death, he was able to purchase the land for £52,000 from Prinsloo's daughter. The Cullinan kimberlite was discovered in 1902 and in 1903 open pit mining commenced. The mine was named the Premier mine. On 25 June 1905, the famed Cullinan Diamond, the largest in the world at , was discovered by Frederick George Stanley Wells, surface manager of the Premier Diamond Mining Company. It was bought by the Transv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niarchos Diamond
Niarchos may refer to: *Philip Niarchos (born 1954), eldest son of the Greek shipping magnate Stavros Niarchos * Spyros Niarchos (born 1955), second son of the Greek shipping magnate Stavros Niarchos *Stavros Niarchos (1909–1996), Greek shipping tycoon * Stavros Niarchos Foundation, established in 1996 to honor Greek shipping magnate Stavros Niarchos * Stavros S Niarchos (ship), British brig-rigged tall ship owned and operated by the Tall Ships Youth Trust *Victoria Niarchos Victoria Christina Niarchos (; born 30 January 1960) is a member of the banking branch of the Guinness beer clan. She is a daughter of ''Patrick'' Benjamin Guinness (1931–1965) (himself half-brother of the Aga Khan IV) and his wife (and stepsis ... (born 1960), member of the non-aristocratic branch of the Guinness beer clan *'' Niarchos'', a genus of goblin spiders {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Economy Of Gauteng
The Gauteng Province's total GDP for 2010 was R811 billion, making the province the single largest contributor to South Africa's GDP with a contribution of 33.8%, despite having only 1.4% of South Africa's land area. Gauteng also generates approximately 10% of the entire African continent's GDP. Gauteng's Gini coefficient of 0.62 makes it more equal than South Africa (the Gini coefficient of which is 0.63 (2014)) as a whole, although this is still a very high figure by international standards. The cities Johannesburg, Midrand and Pretoria, which are all economic powerhouses, and Vanderbijlpark, which is an industrial powerhouse, are all in Gauteng. Gauteng is home to the Johannesburg Stock Exchange, the largest stock exchange in Africa, as well as the head offices of over 140 local and international banks. Some of the largest companies in Africa and abroad are based in Gauteng, or have offices and branches there, such as Vodacom, MTN, Neotel, Microsoft South Africa a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underground Mines In South Africa
Underground most commonly refers to: * Subterranea (geography), the regions beneath the surface of the Earth Underground may also refer to: Places * The Underground (Boston), a music club in the Allston neighborhood of Boston * The Underground (Stoke concert venue), a club/music venue based in Hanley, Stoke-on-Trent * Underground Atlanta, a shopping and entertainment district in the Five Points neighborhood of downtown Atlanta, Georgia * Buenos Aires Underground, a rapid transit system * London Underground, a rapid transit system Arts, entertainment, and media Films * ''Underground'' (1928 film), a drama by Anthony Asquith * ''Underground'' (1941 film), a war drama by Vincent Sherman * ''Underground'' (1970 film), a war drama starring Robert Goulet * ''Underground'' (1976 film), a documentary about the radical organization the Weathermen * ''Underground'' (1989 film), a film featuring Melora Walters * ''Underground'' (1995 film), a film by Emir Kusturica * ''The Underground ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond Mines In South Africa
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions. Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth. Because the arrangement of atoms in diamond is extremely rigid, few types of impurity can contaminate it (two exceptions are boron and nitrogen). Small numbers of defects or impurities (about one per million of lattice atoms) color diamond blue (boron), yellow (nitrogen), brown (defects), green (radiation exposure), purple, pink, orange, or red. Diamond also has a ver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Economic Empowerment
Black Economic Empowerment (BEE) is a policy of the South African government which aims to facilitate broader participation in the economy by black people. A form of affirmative action, it is intended especially to redress the inequalities created by apartheid. The policy provides incentives – especially preferential treatment in government procurement processes – to businesses which contribute to black economic empowerment according to several measurable criteria, including through partial or majority black ownership, hiring black employees, and contracting with black-owned suppliers. The preferential procurement aspect of BEE has been viewed as paradigmatic of a sustainable procurement approach, whereby government procurement is used to advance social policy objectives. So-called "BEE deals" – transactions aiming to increase black ownership of large businesses – have been conducted on a large scale, with BEE transactions concluded between 1994 and 2005 valued at between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Beers
De Beers Group is an international corporation that specializes in diamond mining, diamond exploitation, diamond retail, diamond trading and industrial diamond manufacturing sectors. The company is active in open-pit, large-scale alluvial and coastal mining. It operates in 35 countries and mining takes place in Botswana, Namibia, South Africa, Canada and Australia. From its inception in 1888 until the start of the 21st century, De Beers controlled 80% to 85% of rough diamond distribution and was considered a monopoly. Competition has since dismantled the complete monopoly; the De Beers Group now sells approximately 29.5% of the world's rough diamond production by value through its global sightholder and auction sales businesses. The company was founded in 1888 by British businessman Cecil Rhodes, who was financed by the South African diamond magnate Alfred Beit and the London-based N M Rothschild & Sons bank. In 1926, Ernest Oppenheimer, a German immigrant to Britain and later ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geneva
Geneva ( ; french: Genève ) frp, Genèva ; german: link=no, Genf ; it, Ginevra ; rm, Genevra is the List of cities in Switzerland, second-most populous city in Switzerland (after Zürich) and the most populous city of Romandy, the French-speaking part of Switzerland. Situated in the south west of the country, where the Rhône exits Lake Geneva, it is the capital of the Canton of Geneva, Republic and Canton of Geneva. The city of Geneva () had a population 201,818 in 2019 (Jan. estimate) within its small municipal territory of , but the Canton of Geneva (the city and its closest Swiss suburbs and exurbs) had a population of 499,480 (Jan. 2019 estimate) over , and together with the suburbs and exurbs located in the canton of Vaud and in the French Departments of France, departments of Ain and Haute-Savoie the cross-border Geneva metropolitan area as officially defined by Eurostat, which extends over ,As of 2020, the Eurostat-defined Functional Urban Area of Geneva was made up of 9 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hong Kong
Hong Kong ( (US) or (UK); , ), officially the Hong Kong Special Administrative Region of the People's Republic of China ( abbr. Hong Kong SAR or HKSAR), is a city and special administrative region of China on the eastern Pearl River Delta in South China. With 7.5 million residents of various nationalities in a territory, Hong Kong is one of the most densely populated places in the world. Hong Kong is also a major global financial centre and one of the most developed cities in the world. Hong Kong was established as a colony of the British Empire after the Qing Empire ceded Hong Kong Island from Xin'an County at the end of the First Opium War in 1841 then again in 1842.. The colony expanded to the Kowloon Peninsula in 1860 after the Second Opium War and was further extended when Britain obtained a 99-year lease of the New Territories in 1898... British Hong Kong was occupied by Imperial Japan from 1941 to 1945 during World War II; British administration resume ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christie's
Christie's is a British auction house founded in 1766 by James Christie (auctioneer), James Christie. Its main premises are on King Street, St James's in London, at Rockefeller Center in New York City and at Alexandra House in Hong Kong. It is owned by Groupe Artémis, the holding company of François-Henri Pinault. Sales in 2015 totalled £4.8 billion (US$7.4 billion). In 2017, the ''Salvator Mundi (Leonardo), Salvator Mundi'' was sold for $400 million at Christie's in New York, at the time List of most expensive paintings, the highest price ever paid for a single painting at an auction. History Founding The official company literature states that founder James Christie (auctioneer), James Christie (1730–1803) conducted the first sale in London, England, on 5 December 1766, and the earliest auction catalogue the company retains is from December 1766. However, other sources note that James Christie rented auction rooms from 1762, and newspaper advertisements for Christi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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