*RARE* Vintage Original Robert Rose Green & Blue Flower Necklace

Beautiful green-and-blue rhinestone-center flower by Robert Rose, an American jeweler who founded the company in 1946 in New York (USA) in Manhattan. (Originally a small family business built by Charles and Marion Rose.) The stunning flower petals measure 2"×2", in addition to 1-3/4"×1-3/4". The chain measures 19" long with the signature "Robert Rose" tag at the clasp. Please note that there is a smooth, raised spot on the back side of the flower (please see photo above). I purchased the piece this way, and it seems to be a resin or other type of adhesive. I've worn this necklace for many years with no resulting variation or changes. A chic, boho treasure!