18ct white gold, tourmaline and Australian South Sea pearl necklace, Autore, the collier designed as a line of half round knife-edge links alternating between collet-set antique style cushion-shaped green tourmaline between round cultured pearls measuring 11.00 mm to 14.00 mm, supporting a similarly set swing drop, the tourmalines together stated to weigh 33.33 carats, inner circumference 420 mm, signed Autore., accompanied by an Autore certificate of authenticity and pouch.