Which region hosts the world's most diverse diamond sources?

• A. Asia
• B. Europe
• C. Americas
• D. Africa

Answer: (D)

Diamonds occur in a variety of geological settings, and the region in question has the widest spread of those settings and locations. Africa hosts numerous primary kimberlite and lamproite pipes as well as extensive alluvial and coastal placer deposits across many countries. In South Africa and Botswana, there are several well-known deep-pipe sources, while Namibia, Angola, the Democratic Republic of Congo, and Sierra Leone feature rich alluvial fields and other deposit types. This combination of diverse deposit types across many locales gives Africa the broadest range of diamond sources. Other regions do produce diamonds, but not with the same variety of source types and geographic spread.