Metal:18k gold filled
Stone:Cubic Zirconia
Nickel free-Gold Filled/Gold Layered Jewelry(the highest Safey Standard & environmental protection standard ), Our 18k gold filled jewelries are guaranteed to not irritate sensitive skin.
After all,The item is made from 18K Gold Filled,not solid Gold.The 18K Gold Filled Jewelries are belong to Fashion Jewelry,not Fine Jewelry.Please do not expect a perfection.Anyway It will tarnish or discolor.This king of jewelry does not have any stamps.