Prince of Diamonds (1930)

Eve Marley Aileen Pringleis forced to marry a wealthy jeweler that she does not love in order to save the man she loves Rupert Endon Ian Keith from being unjustly arrested as a thief Rupert unaware of the reason his sweetheart married his rival goes to the Far East where he grows rich after discovering a diamond mine He breaks Eves husband by underselling him and then returns to England to exact his revenge on the woman he thinks did him wrong