Turquoise Sterling Necklace Silver Pendent Vintage Dazzlecity

This piece is a modern vintage sterling silver pendent only. It measures 1 1/2" long and tall. It is stamped but I can not read the stamp - my best guess is Thailand and something else. It was pretty tarnished so I did polish it up just to make sure it would clean up. the turquoise color center shows some silver underneath so it must be a wash. I also magnet tested it and it passed.  The chain is a brand new silver plated 20" braided rope with a lobster clasp. Only one I have.