In South Africa, a worker in a diamond mine is sentenced to death for stealing a huge diamond he found in the mine. Before he dies he passes the stone to a local girl, Musa. Known as the "Shah" diamond, it eventually winds up in New York City. Complications ensue, involving a wealthy society matron, her jealous husband, a gang of vicious jewel thieves and a brutal gangster who owns a nightclub. A lost film.