Black Sapphire Dome RingThis one of a kind ring features a mesmerizing and impressive 5 carat cabochon black sapphire set into a weighty 14k Fairmined gold hammered dome ring. The depth to this black and grey flashing cabochon sapphire is only really appreciated in person. Contact us to come in and see it in for yourself! Size & Options 11. 33mm at widest tapering to 5. 9mm with a black sapphire cabochon, 5. 07tcw. This ring is in stock in a size 9 1 2, and can be sized up