Vintage Filigree Turquoise Cabochon Brooch

This is a multifaceted vintage brooch featuring a large, round faux-turquoise cabochon centerpiece. The cabochon displays a deep teal coloration with characteristic dark veining, held within a multi-layered metal framework. The design incorporates intricate silver-tone filigree and openwork borders, including a scalloped inner bezel and a wide, floral-stamped circular plate. The outer perimeter is defined by decorative open-back scrolls and raised metal lugs, suggesting a mid-20th-century costume jewelry aesthetic, likely from the 1960s or 1970s. The construction appears to be a mixed-metal assembly with a possible antique silver-wash finish. Condition-wise, the piece shows moderate surface patina and darkening in the crevices of the filigree, which is typical for its age. There are no visible chips to the central stone, though the metal components show slight wear on the raised edges. The overall craftsmanship indicates a mass-produced but high-quality decorative piece, potentially designed in a Western or Revivalist style. No manufacturer's mark is visible from the front view, but the complexity of the stamping suggests a professional jeweler's production.

I have examined the digital representation of this vintage brooch. This piece is a classic example of mid-20th-century costume jewelry, likely dating to the 1960s or 1970s. The central cabochon, while striking, exhibits characteristics consistent with molded resin or glass rather than natural turquoise, specifically in the uniformity of the 'matrix' veining. The metalwork is a stamped base metal with an 'antique silver' wash finish. The condition is good, showing appropriate oxidation and patina in the recesses, which adds desirable depth to the filigree. There is slight thinning of the plating on the high points of the scrolls. Market demand for unmarked costume jewelry of this era remains steady among vintage enthusiasts, though it lacks the premium commanded by signed pieces from makers like Sarah Coventry or Trifari. The value is driven by the aesthetic appeal of the 'Western' or ‘Bohemian’ revival style. Comparables for unsigned filigree brooches of this scale and material composition typically sell within the $35 to $85 range at auction or through vintage boutiques. Limitations: This appraisal is based solely on visual inspection of images. Without a physical examination, I cannot perform a 'streak test' or thermal conductivity test to definitively rule out natural stone, nor can I check for 'maker's marks' that may be hidden on the reverse or pin stem. A physical inspection would also verify the integrity of the clasp mechanism and the presence of any lead or cadmium in the alloy. Authentic provenance or a retail receipt from an established mid-century department store would provide a more precise historical context but would not significantly alter the market value of mass-produced costume pieces.