Two-Tone Gold and Diamond Cocktail Ring

This item is a statement or cocktail ring, distinctly featuring a two-tone gold construction with a central diamond. The primary material appears to be yellow gold, forming the majority of the band and bezel setting for the main stone. Accent elements, particularly on the shoulders of the ring, are crafted from what appears to be white gold or possibly platinum, providing a contrasting silvery-white hue. The ring's design is robust and substantial, indicating good craftsmanship. The central diamond is round cut, likely brilliant or a similar facet arrangement, and is bezel-set within a smooth, raised yellow gold casing, giving it a somewhat sunken or protected appearance. The diamond exhibits visible brilliance and sparkle, though its exact clarity and color are difficult to ascertain from the image. The shoulders of the ring feature parallel, grooved channels of the white metal, providing texture and an architectural feel to the design. These grooves are uniform and well-defined. The underside of the band, visible at the base of the finger, is polished yellow gold. There are no immediately visible condition issues such as major scratches, dents, or repairs. General wear consistent with age and use might be present but is not prominent. There are no discernible maker's marks or stamps from the image. The style suggests a mid-to-late 20th-century aesthetic, possibly 1970s to 1990s, characterized by bold designs and mixed metals. The overall quality appears high, with precise metalwork and a secure setting for the diamond, indicative of a well-made piece of fine jewelry.