Newly released papers detail Britain's refusal to relinquish Koh-i-noor diamond to Pakistan

Zulfikar Ali Bhutto, then Pakistan's prime minister had sought the return of the diamond, which was part of the Crown Jewels. -- The British Foreign Office set out its position concisely: "The stark facts are these: i) We have the Koh-i-noor diamond, whether or not our possession of it is legally justified, ii) We have made it clear that we are keeping the diamond, adducing the best arguments to support our contention."