Art Nouveau jewelry (circa 1890-1915) is known for its flowing, organic designs inspired by nature, often featuring floral and botanical themes. Filigree work was a popular technique during this period, particularly in European and artisan-made jewelry. The C-clasp closure suggests this piece was made before the widespread adoption of more secure safety clasps in the 1920s-1930s. The spray brooch style was a common decorative accent on high-necked blouses, shawls, and lapels during the Edwardian and early Art Deco periods. The brooch may have been handcrafted, as slight variations in filigree work suggest artisan techniques rather than mass production.