Mid-20th-century style cameo brooch

An oval-shaped costume jewelry brooch featuring a profile-facing female bust. The piece is composed of a cream-colored relief, likely molded plastic or resin, set against a dark blue background to simulate a traditional layered shell or stone cameo. The central cameo is secured within a silver-toned metal frame displaying an ornate, openwork filigree border with repeating scalloped and scroll-like patterns. The relief carving depicts a young woman with hair styled in an elegant updo, consistent with Neo-Classical revival motifs popular in the mid-20th century. The metal appears to be a plated base metal, showing some minor surface wear and darkening in the crevices, which is consistent with age and use. No maker's marks or signatures are visible in the image, so this is identified as costume jewelry based on the materials and construction appearance. The craftsmanship suggests a mass-produced piece rather than high jewelry. The identification is hedged as a 'style' because physical testing of materials and inspection of the reverse side for markings would be required for a more precise attribution.

Based on my visual analysis of the provided image, I have evaluated this oval-shaped cameo brooch as a mid-20th-century style costume jewelry piece. From what I can see, the central relief appears to be a molded resin or plastic rather than hand-carved shell or stone, set into a silver-toned base metal frame with decorative filigree. I cannot verify the specific metal composition or the age of the materials from a photo alone; a physical inspection would be required to rule out modern reproductions or to check for hidden maker's marks. The estimated value of $15 - $35 reflects the secondary market for mid-century mass-produced costume jewelry of this type. This valuation is based on the assumption that the piece is a vintage mid-20th-century item; if it were identified as a more contemporary mass-market reproduction, the value would likely decrease to under $10. Conversely, if a physical examination were to reveal a hallmark from a sought-after costume jeweler of that era, such as Trifari or Coro, the value could increase slightly. The current market for unsigned costume cameos remains stable but modest, as these pieces were produced in high volumes. To confirm the origin and material more accurately, an appraiser would need to perform a 'hot needle' or chemical test on the cameo material to verify it is not celluloid or early plastic, and use acid testing to confirm if the metal is plated or a solid alloy. At present, this estimate assumes the item is an unattributed mid-20th-century style accessory in fair vintage condition.