The ornamental design for a diverter handle, as shown and described.
FIG. 1 is a front perspective view of a diverter handle according to the present invention.
FIG. 2 is a front view of the diverter handle of FIG. 1.
FIG. 3 is a rear view of the diverter handle of FIG. 1.
FIG. 4 is a left side view of the diverter handle of FIG. 1.
FIG. 5 is a right side view of the diverter handle of FIG. 1.
FIG. 6 is a top view of the diverter handle of FIG. 1; and,
FIG. 7 is a bottom view of the diverter handle of FIG. 1.
The broken lines shown on the rear of the diverter handle define the bounds of the claimed design and the portion inside the broken lines form no part thereof.