An Art Deco-style necklace set with an emerald-cut emerald weighing app. 5.00 ct., a yellow oval-cut sapphire weighing app. 2.33 ct. and a pear-shaped purple sapphire weighing app. 2.40 ct. encircled by numerous brilliant-cut diamonds weighing a total of app. 5.98 ct., mounted in 18k white gold with polished chain links of rock crystal and onyx. Colour: F-G. Clarity: VVS-SI. Weight app. 96 g. L. app. 76 cm.