2.48 Art Nouveau Amethyst Pendant Necklace 14kThis Art Nouveau pendant necklace features a 2. 48 carat cabochon cut amethyst set in 14 karat yellow gold. The pendant showcases a flower bulb design typical of Art Nouveau styling, with the amethyst measuring 7. 75 x 7. 65 x 5. 88 mm serving as the centerpiece. This pendant was originally a hat pin that has been converted into a necklace. The cabochon cut gives the amethyst a smooth, domed surface that highlights the stone's deep purple color rather