Vintage Costume Brooch and Earring Set

This lot contains two pieces of mid-century vintage costume jewelry found on a concrete surface. The primary piece is a multi-colored brooch designed in a stylized peacock or floral fan motif. It features approximately ten pear-shaped, chatoyant glass or acrylic cabochons in a variety of pastel shades including seafoam green, lemon yellow, and dusty rose, resembling cat\u0027s eye stones. The stones are set in a textured, darken-toned metal base with individual petal-like prongs. The second item is a coordinating clip-on earring or smaller brooch featuring a centrally mounted reddish-brown carnelian-style stone or glass cabochon, accented by a decorative cross-hatch metal overlay. The metalwork on both pieces shows significant signs of age, characterized by a heavy dark patina, surface oxidation, and some visible grime in the crevices. The craftsmanship is typical of 1950s-1960s mass-market vintage costume jewelry, likely utilizing pot metal or gold-plated base metal that has since worn down. While no maker\'s mark is visible from the top view, the style is consistent with manufacturers like Coro or Sarah Coventry. The condition is fair to poor, requiring professional cleaning to restore the luster of the stones and metal.

I have examined the visual data for this two-piece mid-century costume jewelry set. The set features a fan-motif brooch with pear-shaped chatoyant cabochons and a coordinating clip-on earring or secondary pin. The pieces exhibit hallmark characteristics of 1950s-1960s production, specifically the 'cat's eye' acrylic stones and textured base metals common in high-volume labels like Sarah Coventry or Coro. The condition is a primary concern; the metalwork shows significant oxidation, heavy patina, and surface grime, while the stones appear dulled by environmental exposure. This 'as-found' state significantly impacts the marketability. Currently, the market for unsigned, mid-market vintage costume jewelry is saturated. While collectors seek out specific designers or 'Schreiner-type' construction, these pieces represent standard mass-market components. Comparable sets in pristine condition typically sell for $40-$60, but the current state of these items necessitates a lower valuation due to the labor required for restoration. Authenticity as a period-correct vintage set is highly likely based on the prong work and stone types. However, a conclusive evaluation is limited by the lack of maker's marks and high-resolution images of the reverse side (findings). To provide a certified insurance-grade appraisal, I would need to physically inspect the tension of the clip-on mechanism, check for hallmark stamps (such as 'PAT PEND' or designer logos) on the pin backs, and confirm the base metal composition via a scratch test. Without provenance or a confirmed signature, the value remains strictly within the decorative collector tier.