Vintage Gold-Tone and Green Enamel Rectangular Brooch/Pin

This is a small, rectangular decorative jewelry piece, likely a brooch or lapel pin, displayed on a wooden surface. The item features a slightly curved or domed rectangular face with rounded corners. The base metal appears to be a gold-tone alloy, exhibiting a warm yellow metallic luster. The face of the pin is decorated with a botanical motif consisting of stylized green leaves and stems. These green elements are executed in a champlevé or cold enamel style, where the green pigment fills recessed areas of the metal. The green color is a medium sage or olive tone with some visible textured mottling within the pigment. Physically, the piece appears to be approximately 1 inch to 1.5 inches in length. In terms of condition, there is minor surface wear and light scratching consistent with age and previous use. The gold-tone finish shows some darkening or light patina, particularly around the edges of the enamel inlay. No obvious maker's marks are visible from this top-down view, but the design style is reminiscent of mid-20th-century costume jewelry, potentially 1960s or 1970s. The craftsmanship is of standard costume jewelry quality, with clean lines between the metal and the enamel fill. The overall aesthetic is organic and botanical, typical of nature-inspired accessories from that era.

I have conducted a visual examination of the vintage gold-tone and green enamel botanical brooch. Based on the aesthetic indicators, this piece is likely a mid-20th-century mass-produced costume jewelry item, dating approximately to the 1960s or 1970s. The botanical champlevé enamel work in sage green is characteristic of standard-grade manufacturing from this era, where base metals were often plated and filled with cold enamel or resin pigments. The condition is graded as 'Good' for its age. I observed minor surface abrasions and a slight patina/oxidation transition where the enamel meets the gold-tone trim. These signs of wear are expected and do not significantly detract from the piece's decorative appeal. The market for non-designer costume jewelry of this type is currently stable but saturated. Comparable unmarked pieces of similar size and motif typically sell within the $20 to $50 range at regional antique malls or online secondary markets like Etsy and eBay. Factors impacting the value include the lack of a visible maker's mark (such as Trifari or Monet), which would otherwise command a premium. The rarity is low, as these were produced in high volumes. Limitations: This appraisal is based solely on digital imagery. A physical inspection is required to determine the base metal composition via acid testing or XRF analysis and to examine the pin-back assembly for structural integrity. Without a signature or original packaging, provenance cannot be verified. To achieve a definitive authentication or higher valuation, one would need to identify a specific manufacturer's hallmark on the reverse side.