The name of the Jwaneng mine in Botswana translates from the Setswana language as “where a small stone is found”.

In fact, the mine has been known since this week as the site of what is probably the third largest diamond in the world.

At the beginning of June, a 1098-carat rough diamond was found, said the mine operator, Debswana, a joint venture between the diamond company DeBeers and the government of Botswana.

It is one of only four diamonds weighing more than 1,000 carats that have ever been excavated.

The largest diamond, the 3,106-carat Cullinen diamond, was found in 1905 in the mine of the same name in South Africa.

The second largest rough diamond discovery to date followed 110 years later: the 1109-carat Lesedi La Rona from the Karowe mine, also in Botswana, which was sold for 53 million dollars.

The mining companies use state-of-the-art technologies to discover extraordinary diamonds in the rock.

A company spokeswoman said they will work with the Botswana government and De Beers to determine the value, sell the diamond and ensure the people of Botswana get the most benefit.