Botswana 's e xports of rough diamonds dropped 15 percent in the first six months of this year to $1.7 billion.
In August , rough exports came to $358 million, official figures from Bank of Botswana according to the.
The vast majority of Botswana 's exports are produced by Debswana, a joint venture between Botswana and De Beers.
The miner earlier this year reduced its full-year production target to 20 million carats from 23 million carats.
