Hidden Halo | RoundClassic Four Prong Solitaire Engagement Ring with Hidden Halo Meet your forever favorite. Harper Hidden Halo features a round diamond in a modern solitaire setting, accented with a delicate French set hidden halo for subtle, all around sparkle. Four claw prongs keep the center stone secure, while the slim, low profile band is designed to stack and built for all day comfort. With soft curves, clean lines, and a hidden flash of brilliance, this is a