A vintage lavalier-style necklace featuring an integrated crescent-shaped pendant in a silver-toned metal. The pendant is decorated with a pierced and repousse design of stylized scrolling leaves and a central floral motif, showing an Art Nouveau influence. It is set with three round-cut faceted blue stones. The central stone is a deeper sapphire blue, while the two flanking stones are a lighter aqua or sky blue shade. The reverse of the pendant reveals a hollowed construction, indicating it was manufactured using die-striking or stamping techniques. The pendant is suspended from a fine oval-link trace chain. The necklace is secured by a small spring ring clasp. No hallmarks or maker’s marks are visible on the metal surfaces of the pendant or the clasp.