Geometric metal stud earrings

This pair of geometric stud earrings features an irregular, rounded quadrilateral shape with domed, puffy fronts and flat backs. The front surface displays a mottled, variegated metallic finish in shades of bronze, copper, and gold with dark underlying tones and a reflective, glossy sheen. The reverse side shows a matte, oxidized metallic patina with a darker, aged bronze appearance. Each earring is fitted with a central post and a standard butterfly clutch backing. There are no visible maker's marks, stamps, or signatures legible in the image. The construction and aesthetic are consistent with mid-to-late 20th-century fashion jewelry, displaying a modernist or abstract artistic sensibility. The condition exhibits natural surface wear and tarnish appropriate for vintage base-metal accessories, with slight variations in the patination across the reverse sides. The identification relies entirely on visual inspection of the physical form and materials, as no provenance or specific designer attribution can be established from the photograph alone.

Based on what I can see in the provided image, these geometric metal stud earrings feature an irregular, rounded quadrilateral shape with puffy fronts, a mottled metallic finish, and an oxidized reverse side. I cannot verify from a photo the exact metal composition, weight, or whether any designer or maker's marks are present on the unphotographed portions or butterfly clutches. A physical inspection would be needed to confirm the base metal and overall structural integrity. The valuation estimate of $75-150 assumes the hypothetical context of a mid-to-century modernist fashion jewelry piece consistent with its visual style. In general, market demand for vintage, unbranded modernist costume jewelry is driven by current aesthetic trends, with wearable condition and appealing patination influencing buyer interest. If these earrings turn out to be modern reproductions, mass-market replicas, or generic pieces simply 'in the style of' mid-century design rather than period accessories, the value would likely decrease to the $25-50 range. To establish a more precise valuation and assess potential authorship, an in-person expert appraisal, hallmark verification, and detailed metallurgical testing would be required.