Halo Engagement Rings, designed with a beautiful row of channel set, prong set, or pavé set diamonds, are built with your choice of center stone. Customize your halo ring from a variety of center stone shapes including round, oval and princess cut. Choose from lab grown diamonds, lab created gemstones or our Diamond Hybrid Simulant. Halo Set Engagement Rings are especially sought after when using smaller center stones, as they create the illusion of a larger size.