Kimarie Cabochon Blue Sapphire Stacking Ring in 22K Yellow Gold. A polished cabochon of natural blue sapphire (about 3 X 5MM) is bezel set into a high karat gold ring by fine jewelry designer, Kimarie. Her work is worn by celebs and mortals alike. Great as a delicate accessory, or stack several for major glam. Currently size 7. Contact CHURCHILL to custom size for you.