Dormith 925 Sterling Silver Starfish Synthetic Blue Fire Opal Pendant Necklace, 17" The latest design pendant necklace. Material:925 sterling silver;synthetic blue fire opal. Pendant size:25*25mm;Silver chain length is 16-18 inches,Total weight:5.07g Tarnish-free and anti-allergic, lead-free. Guaranted authentic, money-back satisfaction guaranted by Dormith Designed by Dormith.makes you life more beautiful.