The Argyle Diamond Mine is a diamond mine located in the East Kimberley region in the remote north of Western Australia. Argyle is the largest diamond producer in the world by volume, although due to the low proportion of gem-quality diamonds it is set to close by 2020. It is the only known significant source of pink and red diamonds, producing over 90% of the world's supply. It additionally provides a large proportion of other naturally coloured diamonds, including champagne, cognac and rare blue diamonds. On June 21, 2015, after more than 11 years and 42 kilometres of tunnelling, the Argyle underground block cave development was officially completed. In 2013, Argyle is estimated to produce 10.2 million carats with an average per carat price of $25/carat.
Dominion Diamond Mines is a Canadian specialist diamond mining company.
The Diavik Diamond Mine is a diamond mine in the North Slave Region of the Northwest Territories, Canada, about 300 km (190 mi) northeast of Yellowknife.
The Orapa diamond mine is the world's largest diamond mine by area. The mine is located in Orapa, a town in the Central District of Botswana about 240 kilometers (150 mi) west of the city of Francistown. Orapa is owned by Debswana, a partnership between the De Beers company and the government of Botswana. It is the oldest of four mines operated by the company, having begun operations in July 1971.
The Letlhakane diamond mine is a diamond mine located in Botswana about 190 kilometers (120 mi) west of the city of Francistown. Letlhakane, meaning "little reeds", is owned by Debswana, a partnership between the De Beers company and the government of Botswana. It is the second oldest of four mines operated by the company, having begun operations in 1975.
The Catoca diamond mine is the fourth largest diamond mine in the world, and is located in Angola. The mine is owned by a consortium of international mining interests, including Endiama, Alrosa of Russia (32.8%), Odebrecht of Brazil (16.4%), and the Diamond Finance CY BV Group (16.8%). The mine is located on a kimberlite pipe.
The Williamson Diamond Mine is a diamond mine 23 kilometres (14 mi) northeast of Shinyanga in Tanzania; it became well known as the first significant diamond mine outside of South Africa. The mine was established in 1940 by Dr. John Williamson, a Canadian geologist, and has been continuous operation since then, making it one of the oldest continuously operating diamond mines in the world. Over its lifetime it has produced over 19 million carats (3,800 kg) of diamonds. The Williamson mine was once owned by its namesake Dr. Williamson and later nationalized by the government of Tanzania. Since February 2009 the mine is mostly owned by Petra Diamonds, with 75% ownership, the government of Tanzania owning the remaining 25%.
The Premier Mine is an underground diamond mine owned by Petra Diamonds in the town of Cullinan, 40 kilometres (25 mi) 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 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 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 blue diamonds in the world.
The Jericho Diamond Mine is a dormant diamond mine located in Canada's Nunavut territory. Jericho is Nunavut’s first and only diamond mine. It is located 420 km (260 mi) northeast of Yellowknife, Northwest Territories and is accessible by air all year and by winter road from Yellowknife. The project was mined from 2006 to 2008, and produced 780,000 carats of diamonds from 1,200,000 tonnes of kimberlite mined from the open pit operation. Over $200 million was invested in the development of the Jericho operations including the construction of a 2,000 t per day diamond recovery plant, maintenance facility, fuel farm, and offices and accommodation for 225 personnel.
The Letšeng diamond mine, found in the landlocked Southern African kingdom of Lesotho, is owned by Gem Diamonds, Ltd. and the government of Lesotho, and at an elevation of 3,100 m (10,000 ft) it is the world's highest diamond mine.
Petra Diamonds Ltd is a diamond mining group headquartered in Jersey. It has a diversified portfolio, with interests in eight producing mines in South Africa and Tanzania and an exploration programme in Botswana. Petra Diamonds' focus has shifted from exploration to production, becoming one of the largest independent producers of diamonds in Africa. In June 2012, Petra owns 5 of the world's most productive mines historically. These mines include the Cullinan Diamond Mine famed for having produced the world's largest rough and polished diamond. It is listed on the London Stock Exchange.
Graff is a British multinational jeweller based in London. It was founded by British jeweller Laurence Graff in 1960. A vertically integrated company, Graff operations comprise the design, manufacture and retail distribution of jewellery and watches.
Mountain Province Diamonds Inc. is major (49%) partner with De Beers in the Gahcho Kue Diamond Mine Project in the Northwest Territories. Gahcho Kué is the world's largest and richest new diamond mine, with an estimated reserve of 80 million carats. The agreement between Mountain Province Diamonds and De Beers is one where both companies share the operating costs of the mine and each independently markets their share of the diamonds from the project.
Lucara Diamond Corp. is a diamond exploration and mining company, operating in southern Africa but established in Canada. In November 2015, Lesedi La Rona, the world's second largest gem-quality diamond ever found, was found at the Karowe mine in Botswana.
The Aikhal mine is one of the largest diamond mines in Russia and in the world. The mine is located in the north-eastern part of the country in the Sakha Republic. The mine has estimated reserves of 40.7 million carats of diamonds and an annual production capacity of 1.3 million carats.
The Zamitsa mine is one of the largest diamond mines in Russia and in the world. The mine is located in the north-eastern part of the country in the Sakha Republic. The mine has estimated reserves of 52 million carats of diamonds and an annual production capacity of 0.2 million carats.
Lesedi La Rona, formerly known in media as Karowe AK6 or as Quad 1 by the personnel at the mine, is the third-largest diamond ever found, and the second-largest of gem quality. Only the non-gem black Sergio and the gem-quality Cullinan were larger. It was found in the Karowe mine, in Botswana on 16 November 2015.
The Golconda Diamonds are Indian diamonds mined in a specific geographic area in the present-day Telangana and Andhra Pradesh states of South India. During the rule of the historic Qutb Shahi dynasty, also known as the "Golconda Sultanate", diamonds from these mines were transported to the city of Hyderabad to be cut, polished, evaluated and sold. Golconda in Hyderabad established itself as a diamond trading center and, until the end of the 19th century, the Golconda market was the primary source of the finest and one of the largest diamonds in the world. Thus, the legendary name 'Golconda Diamond' became synonymous with Golconda itself. The Golconda region has produced some of the world's most famous diamonds, including the colorless Koh-i-Noor, the blue Hope, the pink Daria-i-Noor (Iran), the white Regent (France), the Dresden Green (Germany), and the colorless Orlov (Russia), Nizam and Jacob (India), as well as the now lost diamonds Florentine Yellow, Akbar Shah and Great Mogul.
Pink diamond is a type of diamond that has pink color. The source of their pink color is greatly debated in the gemological world but it is most commonly attributed to enormous additional pressure that these diamonds undergo during their formation.
