Very lovely old 1800's stick pin. Which tests 14 K gold. The stone is possibly a citrine, it is, a genuine gem by the cut and has no scratches. The stone is cut triangular as is the gold setting, the outer edge is open and is a beaded gold, with the outside edge in open work. The stone has a finely cut bezel setting. Stick pin measures 2 3/4 in.'s long including stone, stone measures 4.04 mm wide,4.54mm long. Excellent condition. No id marks. A great old antique piece!