Art Deco style geometric brooch

This is a geometric brooch or pin featuring a polished silver-colored metallic finish and a distinctive step-cut architectural form reminiscent of the Art Deco design movement. The physical construction displays clean lines, tiered rectangular planes, and pointed faceted ends, creating a symmetrical horizontal layout centered around a vertical divided element. The piece shows minor surface reflections and slight handling marks upon its reflective metallic surfaces, but no major structural damage or deep scratches are immediately apparent from this angle. There are no clearly visible maker's marks, hallmarks, or text discernible in the provided photograph to indicate the exact manufacturer, metal purity, or country of origin. The owner's notes suggest that this is a 925 sterling pin, but this user-supplied attribution remains completely unverified by physical testing or hallmarks in the image. Stylistically, the aesthetic aligns with mid-20th-century modernist or revival jewelry designs that prioritize sleek geometry and high-polish metallic construction. The identification is based purely on the visual characteristics of the shape and finish, and the item should be considered unauthenticated pending professional appraisal and physical testing.

Based on what I can see in the photograph, this piece is a geometric brooch featuring an Art Deco style step-cut architectural form with a polished silver-colored metallic finish. Per user submission: the owner identifies this as a 925 sterling pin. However, I cannot verify the metal purity, exact manufacturer, or country of origin from a photo alone, as there are no clearly visible hallmarks or maker's marks discernible in the image. My value estimate of $150 to $300 assumes the owner's claim of sterling silver construction and the stylistic attribution are correct. Mid-20th-century modernist and Art Deco revival jewelry featuring sleek geometry generally attracts steady interest from collectors of period-style accessories, though values fluctuate based on weight, maker identification, and material quality. If physical testing reveals the metal is a base metal rather than sterling silver, or if the item turns out to be a modern reproduction, replica, or made 'in the style of' rather than a period piece, the market value would likely decrease to the $30-$75 range. To establish the actual value and ensure proper context, I would need physical inspection to confirm, which would include hallmark verification, acid or XRF testing for metal purity, and evaluation by an on-site expert or professional appraiser.