Carnelian Bead Necklace. Islamic, 12th Century A.D. Carnelian Bead Necklace. Islamic, 12th Century A.D. Bead necklace of orange faceted tubular and round carnelian beads Faceted beads 1.5" long, round beads 5-6 mm. Necklace 19.5" long. Restrung with modern clasp. Impressive. Value Range $300-$350.