Vintage MB SF Modernist Gothic Black Resin Cabochon Ring Brutalist Wearable Art

Striking vintage modernist ring signed MB SF (San Francisco studio jeweler). Opaque black resin cabochon with etched silver-tone lines across the surface, creating a dramatic, web-like effect. The wide silver-tone band has a strong, geometric presence, embodying both brutalist and gothic aesthetics. Likely handcrafted mid-20th century as part of the Bay Area studio jewelry movement, known for bold experimentation with form and material. A statement piece of wearable art that transitions easily from minimalist styling to dark, gothic looks. Preowned with light wear consistent with age, untested for silver content. This is a preowned item and may show minor signs of wear. Please review all photos and reach out with any questions. Compare measurements to something you already own. Packaged with care and shipped promptly. MB SF ring, San Francisco studio jewelry, vintage modernist ring, brutalist jewelry, gothic resin ring, wearable art ring, artisan signed ring, statement cocktail ring, 1970s jewelry, geometric ring, talisman ring, goth style jewelry, black cabochon ring, steampunk Measurements: • Ring Size: 7.5 - 7.75 (approximate, see pictures) This is a preowned item and may show minor signs of wear. Please review all photos and reach out with any questions or offers! Packaged with care and shipped promptly.