The chain has 18k stamped and passed the magnet test but I''m not positive if it''s real or plated.**passed the viniger test too so I''m probably giving this away but need to to grow on this app**The necklace by itself weighs 2.5 ounces and is included pretty thick. I know the pendant is plated but still cool. Very clean chain just not my style. I sell mostly sports cards but I do post oddities like these once in awhile. Shipping included in price because I use tracked shipping only on all my orders. And please follow me!! And I will follow you back to help each other grow on this app. Definitely has the best people on it. Next day shipping guarantee as well