Abstract: The claimed invention is a mounting device for an object. The preferred embodiment is as a jewelry device or display device. The mounting device comprises supports and restraints whose surfaces correspond precisely to selected surfaces on the object. Mounting surfaces allow tolerance with regard to interfit with the object. In the jewelry industry, the result is that the interior surfaces of seats in a mounting are the mirror image of facets on a gemstone. This use of reflected geometry in a mounting provides benefits in manufacturing, setting, and usage of a finished article. The mounting may be constructed of one or more than one piece, and those pieces may be permanently or temporarily joined to form the mounting. The mounting may be manufactured by any of several methods subject to a skilled designer's preference, including but not limited to fabrication by manual process, computer-aided design and manufacturing, metal-powder.