Gold, Opal, and Diamond Ring

This piece features a yellow gold setting holding a central oval cabochon opal displaying subtle play-of-color flashes in red and blue against a milky white body. The opal is secured by four prongs within an openwork rounded bezel. Accompanying the central stone are two small round-cut accent diamonds set in the gold frame at the top and bottom positions. The visible metal displays a warm yellow tone consistent with karat gold, though purity hallmarks are not readable in the provided image. The overall design suggests a mid-to-late 20th-century aesthetic, exhibiting standard light surface wear consistent with age and gentle use. There are no maker's marks or signatures visible from this photographic angle, and the piece remains unauthenticated. The identification rests strictly on visual observation of the mounting style and gemstone characteristics.

Based on what I can see in the provided image, this ring features a yellow gold setting holding an oval cabochon opal with subtle red and blue play-of-color, accented by two small round-cut diamonds. The piece exhibits a mid-to-late 20th-century aesthetic with standard light surface wear. However, I can't verify metal purity or gemstone quality from a photo, as hallmarks are not readable and unauthenticated. Physical inspection, hallmark verification, and gemological testing would be needed to confirm material composition. Assuming the materials are karat gold, genuine opal, and natural diamonds, items of this type generally trade in the $350 to $600 range within secondary vintage jewelry markets, driven by steady demand for mid-century cocktail and accent rings. If physical testing reveals the piece to be a modern reproduction, a gold-plated replica, or made with synthetic stones, the market value would drop significantly, likely falling closer to $75 to $150 based solely on scrap metal or costume jewelry value.