The Star of Artaban is a 287-caratcabochon-cut star sapphire currently located at the Smithsonian National Museum of Natural History. Its origin is somewhat obscure but it is believed to come from Sri Lanka. Unlike some other sapphires, it is not transparent and is of a milky blue colour. It was donated by an anonymous member of the Georgia Mineral Society in the 1941–1943 time period. The name of the gem is based on the tale of Artaban, a wise man from Persia who set out to meet the Three Wise Men and purchased three great gems, one of which was a sapphire, to present as a gift to the newborn king. He never achieved his goal, and gave his gems to the needy instead.