Super Unique Piece Weighing in at 28 dwt which is 43.5 Grams - Measures approx 2.5"  and the center circle. that is also the clasp is approx 2.25" with the larger ball at about an inch also -- Could Use Polishing, but we leave vintage Sterling As Found unless otherwise requested. Made in Italy in the 1960's/70's and sure to be a welcome addition to your collection! I have seen this on another site for $850.