I believe this pretty silvertone and rhinestone necklace and bracelet set is from the 1960s. The design appears to be a stylized butterfly in different shaped settings for each piece. The necklace is 16 inches long with the butterfly and dangle having navette and round emerald green foil-back rhinestones and round clear stones. Overall length of the butterfly is 2-1/2 inches.
The curved clasp bracelet is about 2-1/4" diameter (will fit a wrist with a 7-1/4" or so circumference). The butterfly design is mounted on silvertone loops with the same type of emerald and clear colored rhinestone decoration, arranged differently. Both pieces are in excellent condition with no damage or problems, unmarked. Please note that I am as bad at photographing jewelry as I am in describing it. The set is much prettier in person, not discolored, and the yellow tinge to the white stones and silver colored settings is not present.