Gold 18k vermeil on sterling silver strong magnet clasp Art Deco style extra long sautoir necklace, one strand hand knotted red jasper beads, aprpx. from 7 mm to 15 mm and 11 mm, rose quartz beads, apprx. from 4 mm, 7.5 mm to 28 x 13 mm, alternating with aventurine beads, apprx. from 9 mm, 23 x 11 mm; marked on the clasp; overall weight 374.0 gm.