Vintage Art Deco sapphire blue crystal & clear paste riviere necklace bezel set, open backed, square / princess cut crystals, free earrings!

Vintage sapphire blue alternating with clear, square stoned crystal riviere necklace - Art Deco or possibly earlier (Edwardian or 1920s). Lovely sized square crystal rhinestones, bezel set in open-backed silver tone settings, connected by silver links. The settings at the back are so simple and pretty that the necklace can actually be worn the other way round, with these at the front (see last picture). Fastens with a spring ring clasp. The necklace is a choker length of 15.5 inches, so please check neck measurements carefully. I am happy to add an extension chain free of charge if you message me with the details. The white metal is not stamped but could well be unmarked silver - untested. It is in very good vintage condition.