Mid-Century Modern Brutalist Opal and Silver Earrings

A pair of rectangular, Brutalist-style clip or post earrings featuring vertical synthetic or laboratory-grown opal inlays. Each earring is constructed from a dark, oxidized silver-tone metal, likely sterling silver with a heavy patina, featuring an organic, 'nest-like' openwork design with textured, cast ridges that suggest molten metal. In the center of each rectangle is a polished bar of vibrant lab-created opal, displaying intense flashes of electric blue and neon green play-of-color in a mosaic-like pattern. The opals are held in place by thick, smooth metallic end-caps that provide a sleek contrast to the rough, textured surround. The earrings exhibit a distinct mid-to-late 20th-century aesthetic, likely dating from the 1960s or 1970s. Condition appears fair to good: there is significant surface oxidation and some verdigris buildup visible in the crevices of the metalwork, which is common for this style. One earring shows a visible vertical pin or post-back, suggesting a standard ear piercing mechanism. The overall craftsmanship reflects a studio-made or artisanal quality rather than mass production, emphasizing textural depth and the juxtaposition of synthetic brilliance against raw, dark metal.