page_title: Premier Mine
hierarchical_section_title: Premier Mine
caption_attribution_description: English: The pit at the Premier Mine, Cullinan, Gauteng, South Africa. The cross-sectional area of the 190&#160;metre deep pit at its surface is about 32&#160;hectares.&#91;1&#93; The mine was the source of the 3106&#160;carat Cullinan Diamond, the largest diamond ever found. ↑ Cullinan Diamond Mine, Gauteng, South Africa - mining-technology.com
context_page_description: The Premier Mine is an underground diamond mine owned by Petra Diamonds in the town of Cullinan, 40 kilometres 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 and more than a quarter of all the world's diamonds that are greater than 400 carats. It is also the only significant source of blue diamonds in the world.
context_section_description: 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.
caption: The open pit, 2011
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