Brutal news for Botswana which was really breaking new ground in raising Sub Saharan living standards. 30% of their GDP and a huge portion of government revenues are diamond exports. And they had gotten to 100% formalized and child labor free supply lines
Botswana's diamond mining industry is exactly one company: Debswana, a 50/50 joint venture between the government of Botswana and De Beers. Which means, when you think about it, that half of one subsidiary of De Beers is effectively producing ~one third of Botswana's GDP. Really puts into perspective how exploitative De Beers is.
Another reading is that Botswana has a small economy.
It has been growing fast for a while, but has a heavy reliance on mining gemstones.