A mounting system for cut stones is provided in the form of a setting (10) adapted to enclose, support and visually enhance a cut stone (12) such as a princess cut diamond (18). The preferred embodiment (10) has concave exterior sidewalls (14) enclosing a mounting aperture (16) for receiving the stone, and a vertically convex upper surface (68) which overlaps a portion of the stone. Sharply tapered apexes (70) virtually extend the corners of the stone and reflective materials help enhance the apparent size and brilliance of the stone. The setting (10) is adapted for use in various types of jewelry.