Decorative ring used as jewelry, has non-circular main body such that difference between maximum ring inside diameter and minimum ring inside diameter of main body is at least 10 percent of minimum ring inside diameter

摘要

The decorative ring (1) has a non-circular main body (2). The difference between the maximum ring inside diameter and the minimum ring inside diameter of the non-circular main body is at least 10 percent of the minimum ring inside diameter. The axial depth of the ring is 30 percent of the ring outside diameter.