The Crown Jewels include the Koh-i-Nur and Cullinan diamonds and Black Prince's Ruby, which came from former British colonies India and South Africa.
No ordinary diamond: how the Koh-i-Noor became an imperial possession
The UK May Still Be In Mourning, But These Countries Want Their Jewels Back – Now
Former colonies of the British Empire want diamonds worth $800 million back from the Crown Jewels
The Kohinoor diamond was obtained by the British Empire. Some argue it should be returned to India.
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The Crown Jewels: Where They Came From, Ties to British Colonial History
Why is the world fighting over Queen Elizabeth's royal jewels? From Koh-i-noor on queen mother's crown to South Africa's Cullinan diamonds on the Sovereign's Sceptre and Imperial State Crown …
Bargain Mast Inside the history between crown jewels and luxury brands: Queen, tiara chaumet high jewelry
Some Indians call for return of legendary Koh-i-Noor diamond from Britain
Why the British Crown Jewels still fascinate today
How often are the British royal crown jewels actually worn? - Quora