Deco Necklace w/ Purple Stone w/ Chain Vintage Avon

This vintage style deco pendant/ necklace is a beauty! Chain is 32” so slips on easily over your head, but also has a jump ring catch. Stamped AVON. Chain is a silver tone rope chain. To be honest, not sure if it’s sterling silver but it’s in excellent clean shiny condition. Pendant is 2” and has marcasite around the frame of the purple stone. Stone is bezel set