U7 Jewelry Set 18K Yellow Gold Plated/Platinum Plated Turquoise Bib Necklace, Bracelet and Earrings Set For Women Material : high qualtiy synthetic turquoise. Base metal : copper. Metal type: 18k gold plated. 18KGP Stamp Resizable? Necklace,bracelet Nickel free lobster claw clasp: study and durable.