Genuine Opal Hoop Earrings made of Sterling Silver. High quality, and very precious. They are also available in Rose Gold over Sterling Silver and 18K Gold over Sterling Silver (925). Hoop thickness 1.5 mm, Outer Diameter: 1.4 cm. Inner Diameter 1 cm Stone: 5 small Genuine Ethiopian Opals, Size approximately 2 mm. **They come in pairs. Opal is known for its unique display of flashing rainbow colors known as play-of-color. Opal is the birthstone for the month of October. It is also the stone give Nickel-free Small Hoop Earrings For Wedding, Nickel Free Small Hoop Earrings For Weddings, Gift Cubic Zirconia Halo Huggie Earrings, Halo Huggie Earrings For Gift, Silver Hoop Earrings With Halo For Gift, Huggie Halo Earrings As Gift, Small Hoop White Cartilage Earrings For Gift, Round Hoop Earrings With Prong Setting As Gift, Cubic Zirconia Huggie Cartilage Earrings For Wedding