Sterling Silver Purple Turquoise Multi Gemstone Pendant Necklace Stamped 925

Purple Turquoise set in Sterling that is stamped also stamped on the hook of chain. Up from the turquoise pendant there are 4 brownish gemstones not sure weather they are smoky quartz or topaz or glass. Very nicely made chain . The piece is Preowned and not quite sure how old it may be. Full length of the chain is approximately 20” inches long. All stones are secure and in very nice condition.