Superb antique French 18k yellow gold stick pin. Featuring an oval amethyst gemstone set into a gold mount decorated with engraved accents. Circa 1900s. Hallmarked with the eagle's head control mark indicating 18k gold content, in use in France from 1838. Also bearing a maker's mark. Measures 2 7/8" length. Weighs 1.8 grams. In good antique condition with general wear commensurate with use and age. Housed in an old presentation box. Box measures 3 7/8" length x 1 1/2" wide.