EUC , this gorgeous choker necklace is an authentic David Yurman piece in sterling silver and 14K yellow gold stamped D.Y. 925 585. The necklace is a 15" choker with genuine turquoise beads that total approximately 7+ carats. The necklace fastens by pushing in the end of the clasp to lock it in, and to unfasten you lift up on the center of the clasp and lift lightly. The necklace does not come in its original packaging. Looks great dressed up or down with jeans and white shirt!!