Rare blue diamond discovered in South Africa

Posted By GABRIELLE LEVY, UPI.com  |  April 18, 2013 at 4:35 PM
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A large and very rare blue diamond that could be worth up to $10 million was unearthed in South Africa at the Cullinan mine near Pretoria.

The diamond, weighing in at an impressive 25.5 carats , was recovered by Petra Diamonds.

"It's very unusual for a diamond of this quality and size to come to market," said company spokeswoman Cathy Malins.

The Cullinan mine is famous for producing blue diamonds, including the largest gem-quality diamond ever discovered, the Cullinan diamond, at 3,106.75 carats before cutting.

The Cullinan diamond was split into a number of pieces, including the second-largest polished diamond in the world, known as the Great Star of Africa.

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