Oval-Cut Blue Topaz or Aquamarine Ring in Yellow Gold

This piece of fine jewelry features a prominent, large oval-cut gemstone, likely a blue topaz or a light-colored aquamarine, characterized by its high clarity and faceted table. The stone measures approximately 1 inch in length, as indicated by the Stanley measuring tape in the image. It is securely held in an ornate yellow gold setting, which appears to be at least 14k or 18k based on the deep yellow hue, though no hallmarks are visible in this view. The setting is distinctive for its four ornamental prongs, each capped with a circular, possibly beaded or small diamond-accented metal detail, providing a vintage or Edwardian-inspired aesthetic. The metalwork surrounding the bezel has a slight texture, suggesting a high-quality hand-finished construction. There is a noticeable internal reflection or color shift in the photo, showing golden hues which may be light refraction or a 'two-tone' effect from the setting. The ring is in excellent condition with no visible chips to the gemstone surface or significant scratches on the metal. The style suggests it could be a mid-century cocktail ring or a more contemporary custom piece designed to highlight the substantial carat weight of the center stone.