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