Continent | Geological structure of the diamond occurrence | Total deposits | Mining* | % | ||||
alluvial | kimberlite | primary | secondary | other | ||||
Africa | 267 | 112 | 5 | 15 | 33 | 432 | 240 | 55.5 |
South America | 207 | ? | ? | 266 | ? | 473 | 304 | 64.3 |
Asia | 36 | 27 | 1 | 2 | 2 | 68 | 40 | 58.8 |
Australia | 13 | 11 | 25 | 4 | 14 | 67 | 33 | 49.3 |
North America | ? | 31 | 1 | 3 | ? | 35 | 6 | 17.1 |
Europe | 4 | 10 | 2 | ? | ? | 16 | 3 | 18.7 |