Gold-tone rhinestone brooch, attributed to BSK (unverified)

This is a vintage costume jewelry brooch featuring a structured, abstract swirling design with an openwork center. The piece is constructed from a yellow gold-tone base metal showcasing textured, ribbed rays radiating outward from a central circular or oval motif. Overlaid on top of this textured halo are sweeping, ribbon-like curved elements pave-set with numerous clear, round-cut rhinestones that exhibit typical vintage foil-backing and prong settings. The overall color palette is a warm metallic gold contrasted with sparkling colorless stones. Based on the overall aesthetic, construction methods, and materials, the piece is consistent with mid-century costume jewelry manufacturing, likely dating from the 1950s to the 1960s. The visual evidence shows moderate surface wear and patina consistent with age, though no specific maker's mark is clearly legible in the current photograph. The owner provided additional unverified context suggesting attribution to the costume jewelry maker BSK, though this user-supplied claim cannot be verified strictly from the image alone without a visible, legible maker's mark.

Based on what I can see in the provided image, this vintage costume jewelry brooch features a mid-century abstract swirling design with textured gold-tone rays and pave-set clear rhinestones. Per user submission, the piece is attributed to BSK. However, I can't verify from a photo alone whether this attribution is correct, as a physical inspection would be needed to confirm any maker's mark or hallmark. The appraisal value range of $75 to $150 assumes the user's attribution to BSK is correct and reflects typical secondary market behavior for mid-century rhinestone costume jewelry of this quality and aesthetic. Demand for vintage costume pieces remains steady among collectors of mid-century accessories, though values are heavily condition-dependent. The piece shows moderate surface wear and patina consistent with age. To confirm authenticity and support the assumed attribution, physical examination of the item, hallmark verification, and expert appraisal would be necessary. If the item turns out to be an unattributed piece, a reproduction, or simply in the style of BSK rather than by the maker, the value would likely decrease to the $25-50 range, reflecting general unbranded vintage costume jewelry pricing.