One of our popular earring styles, these 14 kt yellow gold earring semi mounts are made by Parade Designs. They are just waiting for you to choose what goes in the center! Might you choose diamond centers? or Tourmaline? Whatever you choose, they will be beautiful. The future round centers should measure 6.5 mm in diameter. A halo of 42 round brilliant cut diamonds weigh a total of 0.22 carat total weight. The backs are hinged lever backs.