-There's more than one reason why cushion-cut diamond engagement rings are so popular. The unique shape and rounded corners of cushion-cut stones increase the facet size, meaning they give off an elegant and sophisticated sparkle. The cushion-cut diamond is one of the most classic and recognizable diamond shapes to date. This glimmering engagement ring features a cushion-cut center stone set in a diamond halo. It is raly one of the most popular engagement ring. Our design comes with combination of cushion diamond in the middle and radiant diamonds on the sides of the ring. It is so elegant and luxury choice of engagement ring.