Royal gift or ‘stolen’ gem? Calls for UK to return 500 carat Great Star of Africa diamond

Calls are growing in South Africa for Britain’s royal family to return the world’s largest known clear-cut diamond in the wake of Queen Elizabeth II’s death.

Known as the Great Star of Africa or Cullinan I, the diamond is cut from a larger gem that was mined in South Africa in 1905 and handed over to the British royal family by South Africa’s…