antique cabochon ruby diamond cluster signet ring gold vintage edwardian 5.5

Beautiful, antique ring with a cabochon-cut ruby surrounded by 8 white diamonds, set in 9k yellow gold. The ruby is such a pretty, deep shade of pink and the diamonds are very sparkly. The stones are natural. The interior of the band is hallmarked 375. US size 5.5. The jeweled cluster measures 1/2" tall, 7/16" wide. The ruby measures 7 mm tall, 5 mm wide, 3mm tall. The diamonds measure about 1.5mm or 1/16" wide.