EUC! NO TARNISHING & JUST TOOK TO JEWELER FOR POLISHING & CLEANING! COMES WITH GUCCI BOX & DUSTBAG! I Am Happy To Get A COA For You, Please Purchase At Same Time You Purchase This Listing! Gucci Interlocking G Sterling Silver Chain Necklace - It Features the Iconic Interlocking G Pendant Crafted in Sterling Silver on a Boule Chain - Made from 925 Sterling Silver, Which is 92.5% Pure Silver & 7.5% Copper - Secured With a Lobster Clip Clasp - 16 Inch Length - Ask Any Questions!