The ornamental design for a thirteengemstones in an arrangement in a jewelrysetting, as shown and described.
FIG. 1 is a perspective view of a thirteen gemstones in an arrangement in a jewelry setting showing my new design.
FIG. 2 is a left end elevational view thereof, the right end elevation view and rear elevational view being a mirror image thereof.
FIG. 3 is a top front elevational view thereof.
FIG. 4 is cross-sectional view thereof, taken along line 4-4 in FIG. 3; and,
FIG. 5 is an enlarged cross-sectional view of the circled area in FIG. 4.
The dash dot lines in FIGS. 4 and 5 represent the boundary area of the enlarged area shown in FIG. 5. The broken lines shown in the drawings are for environmental purposes only and form no part of the claimed design.