18 ct. yellow gold, marked. The necklace with 31 multicoloured Southsea cultured pearls in the colours of creme, silvery white until gold (diameter 13 - 15 mm, L. 45,5 cm), the large tourmaline diamond interchangeable clasp with one tourmaline of intensive green colour in emerald cut approx. 18 ct. (approx. 18 x 13,3 x 9 mm) and 126 round brillant cut diam. in total approx. 2,50 ct. G-H.vvs-si. (33 x 28 mm). Additional round interchagenable sphere shaped clasp with 47 round brillant cut diam. in total approx. 1,40 ct. H-I.si-P. (diameter 17 mm, weight approx. 11 g). Weight in total approx.153 g.