... Material:Cubic Zirconia(aka CZ), Corundum, Ruby, Sapphire, Spinel, Glass, K9Shape:Round, marquise, octagon, BAG, pear, oval, heart, square, ... pear etc.For more shapes please visit our website.Customized shape is welcome.Size:1mm-180mmColor:white, black ... and economically important competitor for diamonds since 1976. Cubic zirconia is crystallographically isometric, an important attribute of a ...