Opal Art Deco Necklace, Bracelet & Earrings Set

This necklace, bracelet and earrings set features faceted blue-glass stones that resemble opals or moonstones (I can’t decide which) in fluted silver settings. The lively stones have pointed backs. The mountings and chains may be sterling, but the necklace fish-hook clasp and bracelet tongue-in-groove clasp are both marked “silver”. The unmarked earrings are screw-backs. The bracelet clasp makes me think this set was made in the 1950s Art Deco Revival period.