U7 Jewelry Set 18K Yellow Gold Plated/Platinum Plated Turquoise Bib Necklace and Earrings Set For Women Material : high qualtiy synthetic turquoise. Base metal : copper. Metal type: 18k gold plated. 18KGP Stamp Resizable Necklace: 18+2 inches Nickel free lobster claw clasp: study and durable. 18KGP Stamp. Lobster Claw Clasp: Study and Durable. 18K Gold Plated Platinum Plated