The ornamental design of a gemstone, as shown and described.
A portion of the disclosure of this patent document contains material which is subject to copyright protection. This patent document may show and/or describe matter which is or may become trade dress of the owner. The copyright and trade dress owner has no objection to the facsimile reproduction by anyone of the patent disclosure as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyright and trade dress rights whatsoever.
FIG. 1 is a top view of a gemstone.
FIG. 2 is a bottom view of a gemstone.
FIG. 3 is a first side view of a gemstone.
FIG. 4 is a second side view of a gemstone.
FIG. 5 is a first upper perspective view of a gemstone.
FIG. 6 is a first lower perspective view of a gemstone.
FIG. 7 is a second upper perspective view of a gemstone; and,