Vintage Gold-Tone Openwork Brooch with Faux Opal and Garnet-Colored Stones

This vintage brooch features a complex, openwork circular design with a floral or sunburst motif. The central focus is a large, oval, cabochon-cut faux opal (likely glass or resin) exhibiting a milky-white base with faint blue and yellow fire. This central stone is encased in a heart-shaped textured bezel. Radiating from the center are delicate, gold-tone metal loops and filigree-style struts. The perimeter is accented by six prong-set, round-cut stones in a deep burgundy or garnet color, likely glass or synthetic cubic zirconia. The metal exhibits a matte gold finish, typical of costume jewelry from the mid-20th century, approximately 1950s-1970s. The craftsmanship shows intricate casting, though some elements appear slightly asymmetrical, suggesting a mass-produced but decorative origin. Notable condition issues include visible tarnishing and oxidation on the metal surfaces, particularly within the recessed filigree areas. There is minor surface scratching on the central faux opal. The overall aesthetic is consistent with mid-century Victorian-revival costume jewelry, designed for visual impact and sentimental appeal.