18K yellow gold, star Sapphire and Diamond ring centering one oval shaped star Sapphire= 20 ct. with medium greyish blue color. Enhanced by 14 RBC Dia.= 0.85 ct., H / SI-2. Accented by twisted gold wire mount. Total weight= 26 grams. Size 6 with ring guard. Star Sapphire measures 14.50 x 13.80 in L x W. Circa 1960s.