Men's Onyx and Diamond Gold Signet Ring

This is a men's signet-style ring, likely crafted from gold given its color and the accompanying context indicating '10k', suggesting 10 karat gold. The ring features a prominent, rectangular, dark-colored inlay, possibly black onyx or a type of black enamel, set within the bezel. Centered within this dark inlay is a single, round, colorless gemstone, likely a diamond, which appears to be prong-set. The shoulders and sides of the ring's band exhibit intricate designs, possibly starburst patterns, geometric shapes, or symbolic engravings, adding to its decorative appeal. The overall construction appears solid and sturdy, characteristic of men's rings designed for daily wear. While direct signs of wear such as scratches or abrasions are not clearly discernible from the provided image due to the lighting and resolution, the ring generally presents a clean appearance. Without closer inspection or clear hallmarks, precise age and maker details are challenging to ascertain, but the style suggests it could range from mid-20th century to contemporary. The craftsmanship appears to be of good quality, with attention paid to the setting of the stone and the detailing on the band. The combination of the dark inlay with the sparkling gemstone provides a strong visual contrast, making it a distinctive piece.