Vintage Diamond Pavé Rectangular Cocktail Ring

This item is a vintage-style statement cocktail ring featuring a prominent rectangular face. The ring head is encrusted with a pavé-set arrangement of small, round-cut diamonds or high-quality diamond simulants. The central row appears to feature three slightly larger round stones horizontally aligned, surrounded by a border of smaller accent stones that define the rectangular silhouette. The metal setting appears to be a light-colored gold or perhaps white gold/platinum, though there is a noticeable yellowish-warm patina visible on the inner band and the sides of the mounting, suggesting it may be 14k or 18k yellow gold with a rhodium-plated top. The construction features a tapered shank that widens to meet the rectangular gallery. The craftsmanship displays classic mid-20th-century design influences, possibly late Art Deco or Retro period styling. Regarding condition, the metal shows signs of minor surface scratches and general wear consistent with age. There is significant buildup and oxidation visible between the stone settings, which could be resolved with professional cleaning. No maker's marks or hallmarks are visible from this angle, but the weight and the way the light refracts through the stones suggest a piece of fine jewelry rather than costume. The prongs appear intact, though a closer inspection would be required to ensure the security of each individual stone.