In January 2014, the Petra Diamonds company announced that it had unearthed a blue diamond (considered very rare) of about 30 carats in a mine in South Africa. In which mine and town, which shares its name with the world's biggest gem-quality diamond (also discovered there) was this discovery made?
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Cullinan. This is a town in the Gauteng province of SA, and also the name of the mine.
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