Jean Schlumberger for Tiffany & Co. Pink sapphire bead, diamond and gold necklace, composed of sixteen strands of rose-cut spheroid-shaped pink sapphire beads measuring approximately 2.5 mm each, joined by an 18ct gold tulip clasp, the thumb piece surmounted by a brilliant-cut diamond weighing approximately 0.07 carats, inner circumference 570 mm, gross weight approximately 170 grams, signed made in France, Schlumberger, Tiffany & Co.