Here we have a gorgeous poison ring with an oval aventurine on the front. It is made of sterling silver (stamped 925). The front with the stone can be opened and you can put something into the ring! Not poison I hope! :-) The ring is surrounded with silver balls and wire work.The back of the ring is closed. The closure of the locket works just great and securely. Measurements are: Ring Size: 6.5 Weight: 11gr.