Vintage Abalone and Sterling Silver Oval Ring

This is a vintage statement ring featuring a central oval-shaped abalone shell cabochon. The ring is likely constructed from sterling silver, characterized by its darkened, oxidized patina which highlights the intricate metalwork. The design features a multi-layered bezel; the shell is immediately surrounded by a smooth silver lip, which is then enclosed by a detailed rope-twist or cable border, followed by an outer beaded/granulated 'milgrain' edge. The abalone shell displays a range of iridescent hues, including seafoam green, soft pink, and deeper blue-grey tones, arranged in concentric organic patterns common to mother-of-pearl and similar mollusks. The ring has a slim, polished band that joins the large decorative head. Based on the style and construction, this piece likely dates to the late 20th century (1970s-1990s) and appears to be in good vintage condition. There are no signs of heavy scratching on the shell surface, and the metal shows natural aging without significant structural damage or repair. The craftsmanship suggests a handmade or small-batch artisanal production, typical of Southwestern or bohemia-style jewelry.