A halo setting circles the center stone with a ring of smaller diamonds, which makes the whole ring read larger and brighter than a solitaire with the same center stone. It's a practical way to get more presence without paying for a bigger diamond — the surrounding stones do the work. Ours use IGI certified lab grown diamonds, hand-matched for cut and color, with center stones in round, oval, pear, emerald, and cushion cuts. Set in solid 14K or 18K white, yellow, or rose gold, or platinum. Free resizing, 30-day returns, and a lifetime warranty are included.