Preowned and I purchased this already used. When I purchased this it was just sold as a used alpaca Mexico bracelet. No other information. Not exactly sure what the exact metal or stones are. The metal has not tarnished the two years that I’ve had this bracelet. The smaller triangular blue stones have dimension to them and below the larger blue stones there are two little balls that have movement, but no sound. My guess is that the stones are glass !?!?!! The flat end of the clasp is not 100% straight, but that does not interfere with closing the bracelet, and the clothes is nice and tight and secure, I just may need an extra five seconds putting it on. I’ve worn this without any issues of putting it on myself, no help, but that’s me. Used / pre-owned / Very good condition AS IS Please feel free to ask any questions !