Sterling silver S925 tagged on the end of the chain and branded on the back of the earrings and inner rim of the ring. The necklace is a 17" box style chain. 10mm S925 hoops and an Open /adjustable free size ring ,one size fits most. All pieces are sterling silver and marked as such. All pieces have 1 karat cz's on them. The cubic zirconia is of superior quality AAAAA.