Black Star Sapphire Ring 14ky s7.50ct oval d.06ct

Looking for a black engagement ring? A black star sapphire offers rich color, exceptional durability, and a striking focal point—all in one sleek, understated gem. This one is set simply with diamond accents on either side of the gold mounting, perfect as an engagement or fun-to-stare-at right-hand ring. Star sapphires occur when fibrous inclusions within the gem orient themselves along the three axes of the crystal. When light strikes the fine, needle-like inclusions within the stone, it reflects in such a way that three luminous lines appear at right angles to the inclusions—this optical effect, known as chatoyancy, creates the illusion of a six-rayed star that shimmers across the surface of the sapphire. Star sapphire can occur in any color, but the black star sapphire shows the star phenomenon best due to the material's opacity and the star's golden hue. What fun!

Details: 14k yellow gold engagement ring set with oval 7.5ct black star sapphire (13.5x11.5mm) and .06ctw diamond accents (I1 GH), estate c.1975.