Opportunists in the struggles in Gemworld.
In the New 52 reboot, Lord Reishan is the leader of House Diamond. His sons, in order of birth, are Zushan, Hadran, and Talzanar. With Lord Reishan, and later Eclipso, as leader, they stand in stark comparison with House Amethyst-- the evil contrasting with the good. While Lord Reishan, Zushan, and Eclipso are forces of evil, Hadran and his younger brother Talzanar seem to favor a different, more well-natured path. Hadran even assists Amethyst, one of House Diamond's most hated figureheads.