We claim the ornamental design for an apparatus for capturing images of gemstones, as shown and described.
FIG. 1 is a perspective view from the upper front right side of one embodiment of an apparatus for capturing images of gemstones assembly showing our new design;
FIG. 2 is a lower front right side view thereof;
FIG. 3 is an upper back right side thereof;
FIG. 4 is an upper back left side thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a front view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a left view thereof;
FIG. 9 is a right view thereof;
FIG. 10 is a back view thereof;
FIG. 11 is an upper back side view; and,
FIG. 12 is the view of FIG. 11 depicting the addition of a smart phone.
The broken lines in the drawings depict portions of the apparatus for capturing images of gemstones that form no part of the claimed design.