Vintage-Style Floral Enameled Butterfly Brooch

This is a large, decorative butterfly-shaped brooch featuring a complex openwork design. The piece is constructed from a dark, antiqued silver-tone base metal, possibly brass or pewter with a gunmetal finish. The wings are intricately detailed with a floral motif, incorporating multi-colored enameling in shades of forest green, lime green, teal, and pale yellow. The enamel has a slight pearlescent or metallic shimmer. Accenting the floral design are numerous round-cut faceted rhinestones in a vibrant palette of emerald green, aquamarine, peridot yellow, and clear crystals. The body of the butterfly is densely set with peridot-colored yellow rhinestones in a vertical row. Notable features include fine milgrain-like texturing along the borders and dainty wirework for the antennae. The condition appears to be excellent vintage or contemporary condition, with no visible missing stones or significant chips in the enamel coating. The craftsmanship suggests a high-quality boutique fashion jewelry piece, likely mid-to-late 20th century in style or a modern revival. The overall aesthetic combines Art Nouveau naturalism with mid-century costume jewelry bold colors.