The fifth biggest diamond in the planet's history has just been dug up

Gem Diamonds finds 910 carat stone at its Lesotho mine; doesn't say how it will sell the rock or what it could be worth

One of the biggest diamonds in history has been discovered in the mountainous kingdom of Lesotho in southern Africa.

Gem Diamonds Ltd. found the 910-carat stone, about the size of two golf balls, at its Letseng mine in the country. It’s a D color Type IIa diamond, which means it has very few or no nitrogen atoms and is one of the most expensive stones. The diamond is the fifth-biggest ever found.

The Letseng mine is famous for the size and quality of the diamonds it produces and has the highest average selling price in the world. Gem sold a