From sparkling multi-million-dollar diamonds to custom designs, here are the most expensive diamond rings in the world that ...

Africa is known as a home to huge and expensive diamonds, and in this small village near Koidu, Sierra Leone, the world’s largest alluvial diamond was discovered. As a result of the high ...

Botswana has unearthed all of the world's largest rough diamonds over the last decade, including a 2,492-carat stone discovered last year that was the second-biggest diamond ever dug out of a mine ...