A mysterious black diamond stumped experts for years until one Belgian cutter invented a new machine to shape the 612-carat ...
Today, the Koh-i-Noor diamond remains a point of historical interest due to the controversy surrounding its acquisition and ...
The Cullinan III and IV brooch has an estimated worth of between £50 and £180 million. Elizabeth inherited the diamonds from her grandmother, Queen Mary. Queen Elizabeth II wore her share of ...