upply Precious and Semi-Precious Stones We are very glad to introduce ourselves as one of the biggest gemstone manufactory in China which impenetrate manufacture, produce and trade. Our main production includes all kinds of synthetic gemstones and natural gemstones. More information kindly please browse our website httSeries list for our stones are as follows:1. Natural stoneMagicQuartz,BlackSapphire,Peridot,Aquamarine,YellowBeryl,Morganite,Kunzite,ChromeDiopside,WhiteQuartz,SmokyQuartz,whitetopaz,Iolite,Tanzanite,Blue Sapphire, Ruby, Emerald, Apatite, tourmaline, Blue topaz, Citrine, Garnet, Lemon Quartz, Amethyst, Green Amethyst, Mystic Topaz, Fluorite, Natural Zircon2 Synthetic stoneWhite CZ ,Common colored CZ ,Popular color CZ, Color change CZ, Milky CZ(Opaque),Multi color CZ ,Corundum, Spinel, Colored Glass, Thulium, Swiss Spinel, Swiss Corundum, Initated Amber, Imitated Pearl, Cat Eye3. Created stoneHydrothermal Created Emerald, Created Opal, Pulled Created Alexandrite, Hydrothermal Created Quartz, Hydrothermal Amethyst, Hydrothermal Citrine4. Concave cut stoneConcave Cut CZ, Concave cut Mystic quartz, Concave Cut Lemon quartz, Concave cut Citrine, and Concave cut Amethyst5. Machine cut stoneMachine Cut CZ, Machine cut color CZ, CZ with 8 arrows & 8 hearts, Machine Cut Amethyst6. Mosaic stone(many kinds)