... Giamschid. The splendid fabulous ruby of Sultan Giamschid, sometimes called "The Cup of the Sun" and "The Torch of Night." Byron ("The Giaour") says that the dark eyes of Leila were "bright as the jewel of Giamschid." The carbuncle of Giamschid is one of the treasures sought by the Caliph ... — Selections from the Poems and Plays of Robert Browning • Robert Browning