1: Semi-precious stone in calibrated size, Amethyst, Citrine, Peridot, Garnet,Rainbow topaz, white Topaz, Lemon quartz, Smoky quartz, white crystal etc.
2. Synthetic gemstone: Cubic zirconia, Corundum( Red and blue), Spienl, Glass, Amethyst quartz, Citrine, crystal, green quartz, Emerald, etc