Costume brooch in a sunburst or floral star motif

This item appears to be a large circular brooch or pin, featuring a tiered sunburst or floral design. The central element consists of a round, faceted stone surrounded by a halo of small, clear rondele stones. Radiating from this center are twelve large, marquise-cut stones with a peach or champagne-colored tint. The composition is further accented by smaller clear stones tucked between the outer tips of the marquise petals. The setting appears to be a gold-toned metal, possibly brass or a gold-plated alloy, visible in the prongs holding the stones. The overall aesthetic is consistent with mid-to-late 20th-century costume jewelry styles, such as those produced by companies like Sarah Coventry or Trifari, although no maker's mark is visible in the provided image to verify a specific brand. Without a view of the reverse side to inspect the pin mechanism and potential hallmarks, the exact age and manufacturer remain unverified hypotheses. The stones appear to be glass or high-quality acrylic rather than precious gems, consistent with mass-produced decorative costume pieces. The item shows a bright finish with no immediate signs of heavy tarnishing, indicating it has been well-maintained or is of more contemporary manufacture.

Based on my visual analysis of the provided image, I have examined this tiered sunburst brooch, which features marquise-cut champagne-toned stones and a central faceted stone. Based on what I can see, the craftsmanship and material composition are consistent with high-quality mid-to-late 20th-century costume jewelry. While the design bears similarities to pieces by well-known manufacturers like Sarah Coventry or Trifari, I cannot verify a specific maker without viewing the reverse side for hallmarks or inspecting the pin mechanism. Any attribution remains a hypothesis, as I cannot determine from a photo whether the stones are glass or high-quality acrylic, nor can I evaluate the metal's exact composition. The value estimate of $45–$85 is based on the assumption that this is a well-maintained vintage piece by a recognizable mid-market manufacturer. Should the piece be an unsigned or generic contemporary reproduction in the style of mid-century designers, the market value would likely decrease to the $10–$20 range. Conversely, if a hallmark from a more prestigious designer were present, the value could potentially exceed the current estimate. General market demand for 'champagne' and 'topaz-tone' costume jewelry remains stable among vintage collectors, though prices vary significantly based on brand recognition. To provide a more precise valuation, a physical inspection would be required to examine the construction, weight, and any potential maker's marks, as well as to perform a metal test to determine if the gold-tone finish is a plated alloy or simple brass. For a formal valuation, I would recommend an in-person examination by a jewelry specialist to verify the materials and any hidden identifiers.