The ornamental design for a diamond pave bead, as shown and described.
FIG. 1 is an isometric view of a diamond pavé bead showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a side elevational view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is an opposite side elevational view of FIG. 5.
The broken line showing of holes and star logos in FIGS. 1-7 in the drawings represents portions of the diamond pavé bead which form no part of the claimed design.