Should Botswana break its reliance on diamonds?
Some 70% of the Botswana government's revenues come from diamonds. But now some people are saying that the stones don't hold the same promise for the future, and Botswana needs to make alternative plans and promote diversification.
In other words - diamonds aren't forever.
The BBC's Lerato Mbele has been to the Jwaneng mine, which is run by the global diamond giant De Beers, to see how things are going.