Emerald-Cut Onyx or Black Spinel Sterling Silver Cocktail Ring

This is a statement cocktail ring featuring a centrally mounted, emerald-cut black gemstone, likely onyx, hematite, or black spinel. The stone serves as the focal point, secured in a substantial bezel setting that follows the rectangular geometry of the facets. The setting is mounted on a wide, tapered band crafted from a white metal, most likely sterling silver based on the visible luster and surface oxidation patterns. The band features a distinctive 'crossover' or overlapping design at the shoulders, with grooved, sculptural texturing that suggests a contemporary or late 20th-century aesthetic. The metalwork exhibits a bright polish on high points with a dark patina in the recessed grooves, emphasizing the depth of the metal details. The overall construction is robust, indicating a cast manufacturing process rather than hand-forged work. Visible condition issues include minor surface abrasions on the metal consistent with regular wear, along with accumulated grime around the stone's seat. There are no immediate signs of stone chipping, though a microscopic inspection would be required for verification. The style is indicative of designer-inspired fashion jewelry from the 1980s to 1990s, characterized by bold silhouettes and monochromatic palettes.