Dormith 925 Sterling Silver Synthetic Blue Fire Opal Turtles Stud Earrings (Blue) Dormith 925 Sterling Silver Charm Women Fire Opal Turtles Stud Earrings Best Gift (Blue) Material:925 sterling silver;synthetic fire opal. Earrings size:12*18mm. Total weight : 4.35g. Tarnish-free and anti-allergic, lead-free. Guaranted authentic, money-back satisfaction guaranted by Dormith. Designed by Dormith; makes your life more beautiful.