Metal - Gold Plated Over 925 Sterling Silver Green Onyx - (Gemstone Composition - Natural, Enhancement - Dyed) The hoops are gold-toned gold plated over sterling silver metal and feature a row of round-shaped, light green colored green onyx gemstones. Each gemstone is set within a small bezel, and the hoops have a series of small, beaded details surrounding the gemstones. The earrings have a classic hoop design, with standard gold-tone posts for attachment to the ear. The gemstones are not uniform in shade, there is a slight variation in the tone of green.