Gems :Natrual Semi-precious Gemstones, Chrome diopside, peridot, garnet,amethyst, citrine. and so on, Natural rough 1.Natrual Semi-precious Gem,Different shape: ... . We have two factories, one as the semi-precious gemstones factory and the other is our jewelry manufacturing factory. Thus ... , we form a whole line supply from gemstones to jewelry designs. With our 17 years of experience and ...