Vintage Vintage plated brooch with vines and engraved leaves.

Lovely gold brooch with green jadeite, Bakelite, celluloid, or stone. I just don’t know what they are made of? Not faceted. Retro, vintage, EUC, there is a complete circle on the back that made me wonder if it could be worn as a necklace too? I have had it for awhile and am just not wearing it. Please see pictures for details and measurements. Accepting reasonable offers. Holiday, bridal lucky brooch. St patty’s day Patrick’s, feminine organic form, party, gift, 5 peas,