20:28 20 November 2015
A 1,111-carat stone has been discovered in Botswana. It is world's second largest diamond and is a size of a tennis ball.
Canadian company Lucara Diamond has announced its discovery in Karowe mine, roughly 300 miles north of Gaborone, Botswana's capital.
The stone is the biggest ever discovered in Botswana and the largest find in more than a century.
Lucara's CEO William Lamb said that the stone will be transported to Amsterdam where it is hoped there will be a scanner large enough to scan it.
Due to its size, it could be impossible to value the stone and it is likely that the diamond will be split into multiple pieces over the coming years.
The world's largest diamond was discovered in South Africa in 1905. The 3,106-carat Cullinan was split into a number of pieces. Among them the Great Star of Africa and the Lesser Star of Africa, set in Britain's Crown Jewels.