One of the most popular engagement ring styles is the halo. That’s because it creates a dazzling shimmer while letting the center stone shine. A row of smaller pavé-set diamonds creates a border or halo around the central stone. The halo stones reflect light onto the center stone, making it seem even more brilliant and sparkly. A halo setting is a gorgeous way to set off a beautiful white diamond or help a more modest stone look larger. It can also provide a stunning contrast if you choose a color gem for the center stone, like a sapphire, ruby, morganite or pink diamond.