Gorgeous & delicate opal Earring , Nice gift for girlfriend/wife or Mother Basic information Stone: Good Fire Nature Opal Stone Shape: Circle 44 mm Metal Materials: Sterling Silver (18K gold plated / 18K rose gold plated) Please pay attention here, because this is a pure natural opal, not synthetic, so the fire color of each one is unique & different, so there may be some differences between the actual object & the picture. Tips: Please Do not contact with water ,or keep it in a wet environment for long time Dainty&gorgeous Genuine 4mm Nature Fire Opal Stud Earring Sterling Silver , Anniversary Gift, Women’s Earring,birthday Gift