On January 26, 1905, the course of gemstone history was altered forever in a small town near Pretoria, South Africa. During a ...

The 41.28ct blue diamond unearthed at the famous Cullinan Mine, could be one of the most significant gemstones ever to be mined.

A pair of diamonds that formed hundreds of kilometers deep in Earth's malleable mantle both contain specks of materials that form in completely opposing chemical environments — a combination so ...

The illustrious Cullinan diamond mine, flagship of London-listed Petra Diamonds, is not only famous for hosting the largest ...

A 41.82-carat South African blue diamond of ‘exceptional colour and clarity,’ from the Cullinan Mine, could sell for record value ...