Vintage Gold Tone Ring with Cabochon Gemstones

This item is a vintage-style ring, likely crafted from a gold-toned base metal, possibly brass or a gold-plated alloy, given its somewhat muted, aged metallic luster. The ring features a pronounced, oval-shaped central setting occupied by a dark, likely black or deep navy, cabochon gemstone, which appears to be either onyx or a similar opaque stone. On either side of the central stone, embedded into the ring's shoulders, are two smaller, round, bezel-set blue gemstones. These blue stones are vibrant and appear to be either lapis lazuli, sapphires, or a synthetic equivalent, their color contrasting sharply with the darker central stone and the metallic band. The ring's band is relatively wide and has a somewhat flattened top profile, suggesting a robust and possibly masculine design. The surface of the metal shows signs of wear consistent with age, including minor scratches, scuffs, and a visible patina that has dulled its original shine, lending it an antique appearance. There are no immediately discernible maker's marks or signatures visible from the provided image. The construction appears sturdy, with the stones securely set. The overall aesthetic points to an older piece, potentially mid-20th century, with a somewhat bold and classic design.