Men's Vintage Silver-Tone Black Onyx Cabochon Signet Ring

This is a men's signet-style ring featuring a prominent oval-shaped black stone, likely polished black onyx or glass, set into a silver-toned metal band. The stone is flat across the top with a smooth, matte-to-semi-gloss finish and is held in place by a simple bezel setting. The metal, which appears to be sterling silver or a high-quality costume alloy based on the luster, features decorative vertical ribbing or fluting on the shoulders that tapers down into a solid band. The construction is substantial and mid-weight, typical of mid-20th-century masculinely-styled jewelry from the 1940s to 1960s. Upon close inspection, the metal shows signs of moderate wear with fine surface scratches and minor oxidation consistent with age, though no major structural damage or repairs are visible. The craftsmanship suggests a commercial production piece of good quality, possibly bearing a '925' or maker's hallmark on the inner shank, though not visible in the current view. The aesthetic is classic and understated, reflecting a timeless mid-century modern influence.