Two ruby and diamond cluster rings and an opal and diamond cluster ring

Two ruby and diamond cluster rings and an opal and diamond cluster ring
One claw-set with an oval-cut ruby within a brilliant-cut diamond surround; the other with a central circular-cut ruby within a brilliant-cut diamond surround; the third set with a cabochon opal within a brilliant-cut diamond surround, each to a trifurcated hoop, finger sizes K½ (3)