9ct white gold 3 stone diamond ring with diamond set shoulders. Total carat weight .25ct. Size N. Diamonds are illusion set. An illusion setting is a style of jewellery setting which enhances the appearance, and especially the perceived size, of the diamonds in it. The illusion setting displays a small diamond in a precious metal surrounding that has been patterned so that it copies the facets of the diamond giving the illusion from a distance of a much larger diamond.