These are 12 of the most expensive diamonds in the world
The Hope Diamond, Travel
Huge American diamond, 16.97 carats, coming to auction in New York
South Africans call for UK to return diamonds set in crown jewels
Cullinan Diamond - Wikipedia
Was the Cullinan Diamond a Royal Gift or Stolen Gem?
Diamond: Mineral information, data and localities.
Largest diamond found in North America - The Washington Post
Top 8 largest diamonds in the world
Largest diamond found in North America on display in New York
World's Largest Diamond Found
History of Queen Elizabeth & the Royal Family's Cullinan Diamonds
Top 8 largest diamonds in the world
Man finds 35,000th diamond at Arkansas park, his 50th this year
552 Carat Yellow Diamond Unearthed