Halo engagement ring settings were first seen in the 1920s and have become popular again for modern engagement rings. A halo setting features a larger center stone surrounded by a circle (or halo) of smaller stones. Sometimes the circle is made with stones in individual settings, other times it is made with a row of pavé stones. The band can either be plain or set with pavé stones, as well.
The center stone for halo rings is often a diamond, though many jewelers will use colored gemstones such as aquamarine, sapphire, or emerald. The stones that form the halo are usually diamonds, regardless of the type of center stone, but they can be other gemstones, as well.
Halo engagement ring settings are a popular way of making a smaller center stone appear larger. Modern halo engagement rings are often made with up to two or three halos of pavé diamonds