FIG. 1 is a top, front side perspective view of a ring guard showing my new design in a position of use, the broken line showing of a finger and finger ring ornament is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a bottom, rear perspective view shown in a relaxed position;

FIG. 3 is a top plan view of FIG. 2;

FIG. 4 is a bottom plan view of FIG. 2;

FIG. 5 is a front elevational view of FIG. 2, the opposite side being identical; and,

FIG. 6 is a side elevational view of FIG. 2, the opposite side being identical.