Vintage Diamond Cluster Square Halo Ring

This is a vintage-style cluster ring featuring a square-shaped head set with multiple round-cut stones, likely diamonds or cubic zirconia. The center stone is slightly elevated, surrounded by two concentric tiers of smaller accent stones in a pavé or shared-prong setting, totaling approximately 13 to 17 visible stones. The metal appears to be a white-tone alloy, such as white gold, platinum, or sterling silver, given its cool metallic luster. The band features a tapered shank that widens as it meets the square head, transitioning into polished shoulders. The construction suggests a mid-to-late 20th-century aesthetic, possibly late Art Deco revival or late 1980s commercial bridal jewelry. Noted conditions include moderate surface wear and light scratches on the shank, consistent with long-term use. There is noticeable grime and patina between the prongs and around the gallery, which may obscure the clarity and brilliance of the stones. No maker's marks or hallmarks are visible in the provided image, but the overall craftsmanship suggests a mass-produced fine or fashion jewelry piece rather than a bespoke artisan work. The setting style aims to maximize surface area and light reflection, typical of 'illusion' settings designed to make the stones appear larger and more cohesive from a distance.