Style these three complementary PANDORA rings for a stackable look that steals the spotlight. Sterling silver/melanite/black cubic zirconia. Imported. Sizing: 7 US (54 EUR) Style #USB1901. Includes one of each of styles: 190829CZK, 190851ME, 190381. Gemstones are often treated to enhance their beauty. Some treatments may not be permanent and/or may require special care. Photo may have been enlarged and/or enhanced.