Vintage Turquoise Rivière Necklace Convertible to Bracelet Set

French turquoise rivière necklace that converts into two bracelets.  The necklace can be worn stacked as bracelets or connected to make a collar necklace. The large graduated oval cabochons are set in 18k gold collet settings. French import hallmarks. Found in Paris. 

Measures 15.50" in total length. Hidden push clasps with safety clasps.  One bracelet measures 7.50" and the other one is 7.75".