The Timur Ruby (also Khiraj-i-alam, "Tribute to the World") is an unfaceted, 352.54-carat (71 g) polished red spinel set in a necklace. It is named after the ruler Timur, founder of the Timurid Empire and purportedly one of its former owners. It was believed to be a ruby until 1851. It is inscribed with the titles of five of its previous owners: Jahangir (who also had the name of his father Akbar the Great inscribed), Shah Jahan, Farrukhsiyar, Nader Shah and Ahmad Shah Durrani.Since 1612, the owners of the Timur ruby have also owned the Koh-i-Noor diamond. It has been in the possessions of the Safavid, Mughal, Sikh and British empires, and is currently part of the Royal Collection.