Vintage sterling silver Art Deco sapphire blue chaton cut crystal rhinestone riviere necklace bezel set, open backed, by W H Collins

Vintage sterling silver pretty sapphire blue crystal riviere necklace - Art Deco or possibly earlier (Edwardian or 1920s). Lovely sized sparkling sapphire blue crystal rhinestones, bezel set in lovely open-backed sterling silver raised settings, connected by sterling silver double links.

The necklace fastens with a spring ring clasp and has a slim fitting choker length of about 15 inches, so please check neck measurements carefully. Please ask if you would like a length of extension chain to be added before shipping. The two settings on either side of the clasp are stamped - one with 'sterling silver' and the other with 'PAT 311897'. 

This patent was granted on 23rd May 1929 to a jeweller called Walter Henry Collins. The last picture shows the patent drawings and how the construction was achieved.

I have other versions with different types and colours of stone available on my website. This necklace is in very good vintage condition.