... oval cubic zircon gemstonesMaterialZirconium stone(Lab created)ManufacturerWu Zhou Zuan Fa GemsColorcubic zircon stones in red, pink, white,black,champagne,purple,garnet,etcShapeoval (and a ... . One is for cubic zirconia, synthetic corundum, spinel, and glass production and the other is for synthetic jewelries such as necklace, rings, bangles, earrings ...