The Art Nouveau movement that flourished at the turn of the 20th century had profound influence on the decorative arts, including jewelry. The style's sweeping, rhythmic curves and use of stylized floral and animal forms lent themselves well to adaptations in precious stones and rare metals. Lalique, Mucha, and Tiffany were perhaps the most famous designers of Art Nouveau jewelry, but there were many lesser-known artists of superior abilities,...