Sales of rough diamonds at Debswana Diamond Company fell by 49.2% to $1.29 billion in the first half of the year, compared to $2.54 billion in the same period last year, according to Botswana’s central bank data. In local currency, sales dropped by 47.3% to 17.555 billion pula. This decline is a significant setback for Botswana, which relies on rough diamond sales for 30-40% of its revenue, 75% of its foreign exchange earnings, and one-third