Rank Country/Region Diamond production (million carats) in 2016 World 121.7 1 Russia 40 2 Botswana 20.9 3 Australia 13.9 4 DR Congo 12.3 5 Canada 11.1 6 Angola 9 7 South Africa 8.4 8 Zimbabwe 2.1 9 Namibia 1.5 10 Sierra Leone 0.5 - Other countries 2