Each piece will vary in size, color, shape and texture. Material: Gold over sterling silver Stone: Faceted Blue Topaz Quartz Size: Approx 9mm Care instructions: Gold plated items and gold vermeil should not be worn in the shower, pool, or the ocean. It can fade the gold finish more quickly. Pearls, gemstones, and stalacities should be handled with care. Oils and other liquids can permanently damage or change the color of the stone.