My understanding of this necklace is that it was crafted using a twisted black silk cord. Piece measures approximately 16 inches plus 3 1/2 inch extender. Quarter coin is for additional size reference. Appropriate marks and signature inside clasp. Minor signs of typical wear. Please view all pictures. No bag or original packaging. Comes with gift box not original to the piece. Really appreciate this design for its simple elegance and the generous length and quality of the extender piece.