The ornamental design for a jewelryclasp, as shown and described.
FIG. 1 is a front view of a jewelry clasp, showing my design;
FIG. 2 is a rear view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a perspective view thereof;
FIG. 8 is a perspective view thereof in an open condition;
FIG. 9 is a right side view thereof in an open condition; and,
FIG. 10 is a perspective view showing the state of use thereof.
The broken lines depicting the beaded strand, the loop and the loop attachment shown in FIG. 10 are for illustrative purposes and do not form part of the claimed design.