ZilverPassion Stacking Ring Round 4mm Cabochon Semi-precious Stone in Sterling Silver: Amethyst, Citrine, Garnet, Peridot, Moonstone, Opal, Pink Opal, Lapis Lazuli, Turquoise, Black Agate, Mother of Pearl, Malachite (Size 2,3,4,5,6,7,8,9,10,11,12) FREE Jewelry Gift Bag 925 Sterling Silver, Nickel Free 1.5mm Band width Wear alone or Stacked with others Birthstone stackable ring