AI Appraisal Estimate

This is a mid-century vintage costume jewelry necklace produced by Coro, likely dating from the 1950s or 1960s. The piece features a gold-tone metallic construction with a classic snake chain or tightly linked herringbone chain that transitions into a decorative bib section. The central focal point is a multi-petaled solar flower pendant suspended from two curved, openwork leaf-like flourishes. The flower is set with vibrant aqua or turquoise-blue marquise-cut rhinestones forming the petals, while the leaf sections are accented with small, round chaton-cut rhinestones in a matching hue. The center of the flower is clusters of clear or aurora borealis seed rhinestones for added brilliance. The craftsmanship is characteristic of Coro's mass-market elegance, featuring prong-set stones and a fold-over or box clasp closure common to the period. Condition-wise, the gold plating shows light surface wear and minor patina consistent with age, particularly where the pendant joins the chain. The rhinestones appear intact, though some of the smaller clear stones show slight darkening. The overall design exhibits the feminine, nature-inspired motifs popular in mid-20th-century fashion jewelry.

Based on my examination of the high-resolution descriptions and imagery provided, this Coro mid-century bib necklace represents a quintessential example of post-war North American costume jewelry. The floral focal point, utilizing marquise-cut aqua rhinestones and gold-tone openwork, aligns perfectly with Coro's design language of the 1950s. The stones appear to be original prong-set glass, and the minor patina noted on the gold plating is typical for white metal bases of this era. While Coro was a prolific mass-market manufacturer, their signed bib necklaces remain highly collectible for their structural integrity and vintage aesthetic. The current market for mid-tier signed costume jewelry is stable, with similar 'Coro' signed pieces frequently realizing between $40 and $75 at boutique vintage retailers and online auctions. The slight darkening of the chaton rhinestones prevents this piece from reaching the 'near-mint' premium tier. Please note that a definitive assessment of the base metal composition and stone security requires an in-person loupe inspection. Without a physical signature check on the clasp or pendant reverse, I cannot 100% guarantee authenticity, as unsigned 'styles of' pieces often exist. A full authentication would require verifying the 'Coro' Pegasus or script hallmark and checking for any previous structural solder repairs that may not be visible in photographs.