... 3.OEM orders are welcome Product Name: Semi-precious gemstone stampOther Material: Amber, amethyst, aquamarine, aventurine, bloodstone ... crystal, emerald, garnet, green amethyst, iolite, jasper, labradorite, lapis lazuli, malachite, moonstone, onyx, peridot, prehnite, tiger eye, ... manufacturer and exporter of semi precious stone & gemstone products (including beads, loose gem and carving products ...