These French Art Nouveau earrings from c.1900 are crafted in silver with 10k gold (tested at 44.83% fineness) and set with rose-cut rock crystals. The screw fittings are in 18k solid gold and appear to be later additions, showing light soldering traces from conversion. Each starfish curls with lively, elastic movement: five arched arms, serrated edges, and raised rose-cut crystals evoke the rough, spined surface of an echinoderm. The result balances naturalistic detail and stylized flow—an unmistakably Art Nouveau interpretation of a marine form.