This Boulder Opal bracelet has the brightest flash of electric green /blue opal exploding from the host rock . The brilliant flash of colours are best appreciated on movement which is why this opal is perfect as a bracelet. The opal measures 25mm long x 20mm wide and   comes with waxed cotton cord tied with slip knots to adjust the length so it will suit everybody. This style of bracelet is very popular with men, ladies, teenagers ……just about everyone!