Sterling Silver Charm Set with Semi Precious Stone. The stone set hooks feature a choice of three stones; Amethyst, Peridot and Rhodolite Garnet. Each stone is set upside down so that the point of the stone can be seen when it is worn. Stone diameter = 8mm. Setting diameter = 8.5mm. Setting height = 2.4mm. Hook length = 13mm. Please note that the shade of stone may vary. The hook is hooked on to the chain and concealed inside the pendant when worn.