This super rare Gucci choker is an amazing find! Early 80's hercules knot in a lapis blue enamel anchored on a 925 sterling silver choker. Easy closure. It is very roomy, could also be a unisex piece. I have a small neck so hard to show in the 1st pic, across, measures 5" each way; circumference measures around 15." If you need a perfect measurement, please ask before purchasing! This is 100% authentic vintage Gucci at its finest!