Marco Polo Designs are handcrafted in their studio in the U.S.A. and use their own exclusive handmade glass beads, Swarovski crystals, freshwater pearls, precious gemstones, semi-precious gemstones, Bohemian and Japanese glass, faux pearls, and a variety of other materials, on sterling silver and gold vermeil. Most of their major handmade beads are their own exclusive designs, of Murano glass and American dichroic glass.