Rare Blue Diamond found in South Africa’s Cullinan mine

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