BUCCELLATI RUBY AND DIAMOND DOME RING IN 18KT TWO TONE GOLD BUCCELLATI RUBY AND DIAMOND DOME RING in 18kt yellow and white gold, embellished with a central oval-cut ruby of ct 0.80 and brilliant-cut and huit-cut diamonds totalling ct 1.50, signed "Buccelati", hallmark 750, size 12/52, gr. 6