World's Second Largest Uncut Diamond Is Officially Too Big To Sell

Why Nations Fail: The Origins of Power, Prosperity, and Poverty

Koh-i-Noor - Wikipedia

The Largest Diamond Found In A Century Comes From Botswana. Who

World's largest uncut diamond is too big to sell

Buying Guide for a 2.50 Carat Diamond Engagement Ring

World's Second Largest Uncut Diamond Is Officially Too Big To Sell

10 of the Rarest and Most Valuable Gemstones in the World

Story of a crown: sapphire, pearls, ruby and diamond all tell a

Crown on Queen's Coffin Contains Controversial African Diamond