Radiant diamond tends to lengthen sightline on the ring finger, creating a rather slimming appearance for elegance. The main feature of a round cut diamond is its 45-degree corners as well as the flat table. When set in an engagement ring, the radiant cut gemstone may look similar to one that is cushion cut, with the distinction only noticeable to an appraiser, who uses a magnifying glass for closer examination. In other words, one would have to be a trained eye to tell the difference between a cushion cut and a radiant cut diamond. It is a personal choice to select radiant cut three stone diamond engagement rings or go for the ones that have a diamond as the center stone with two other gemstones as accents. However, the latter design style adds a dramatic twist to an engagement ring with a solitaire setting. Note that the facets or brilliance of a radiant cut diamond can help to hide the inclusions in the gemstone, which only goes to make its clarity grade rather eye clean.