Ahmad Shah Durrani
In 1751, Nader Shah's grandson gave Kohinoor to Ahmad Shah Durrani, also known as Ahmad Shah Abdali, founder of the Afghan Empire, in return for his support. One of his grandsons, Shuja Shah Durrani, wore a bracelet containing the diamond on the occasion of Mountstuart Elphinstone's visit to Peshawar in 1808. In 1809, Shah Shuja formed an alliance with the United Kingdom to help defend against a possible invasion of Afghanistan by Russia, but he was quickly overthrown. However, he fled with the diamond to Lahore, where Ranjit Singh, founder of the Sikh Empire, in return for his hospitality, took possession of it in 1813