A rare blue diamond has been discovered in a mine in South Africa.
The 29.6-carat stone was recovered by Petra Diamonds at its Cullinan mine, about 40km (25 miles) north-east of Pretoria.
stone is one of the most exceptional stones recovered at Cullinan during Petra’s operation of the mine,
the company said.
Petra unearthed a 25.5 carat blue diamond which sold for $16.9m (£10.3m) in 2013 — via redwolf.newsvine.com
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