TANZANITE, DIAMOND AND PEARL CHOKER. White gold 750. Very fancy, seven-row necklace of numerous Akoya pearls of 4 mm Ø, with an elegant clasp in the centre, set with 1 antique-oval tanzanite weighing ca. 136.36 ct, within a double-border of 52 brilliant-cut diamonds weighing ca. 13.20 ct l. L ca. 34.5 cm.