[HIGHLIGHTS] Britain took it during colonialism and is worn by the king at his coronation ceremony. Campaign to bring the world's largest diamond back to South Africa

South African activists have launched a massive campaign to restore the Cullinan diamond. The diamond will be worn by King Charles III at his coronation ceremony on Saturday at Buckingham Palace in London.

Britain is accused of taking the diamond during its colonization of South Africa (1806-1961) The activists launched a petition that gathered thousands of signatures, reading: "As South Africans, we would like our diamond to return to us and be displayed in a museum in South Africa" The campaign received wide attention across the platforms, with many encouraging activists' efforts.