These beautiful stud earrings feature the birthstone for October, created opal in 6x8mm oval shape. The opal centerstones are halo-set and showcase a magnificent spectrum of colors, framed by 1.75mm and 1.0mm round genuine white topaz accent stones. These stud earrings measure 1/2-inch long and wide and have post and butterfly closures. Crafted in 925 sterling silver with rhodium plating for anti-tarnish protection, simply wipe occasionally with a soft cloth to maintain shine and luster. 2 Post back, 58 Polished finish Prong setting No Warranty China Imported Product Specifications 1/2-in x 1/2-in 1.06 Material & Care Sterling Silver Sterling silver Clean with a soft cloth.