Marquise Green Stone and Rhinestone Cocktail Ring

This item is a ring featuring a central marquise-shaped cabochon gemstone in a translucent, muted green color, possibly jadeite or similar natural stone, set within a highly decorative, silver-toned metal mounting. The central green stone measures approximately 7-8mm in length. Surrounding and accentuating the central stone are numerous small, round, faceted clear gemstones, likely rhinestones or paste, set in a pavé or channel-like fashion across an openwork, abstract, or possibly insect-inspired design. The clear stones exhibit varying degrees of brilliance, with some appearing cloudier or perhaps suffering from adhesive degradation, which is common in older costume jewelry. The metal setting appears to be a base metal, possibly pot metal or a silver-plated alloy, given the visible wear and darkening in recessed areas, suggesting areas of tarnish or patination rather than solid sterling silver or gold. The overall design suggests a mid-20th-century aesthetic, possibly from the 1940s to 1960s, a period known for intricate costume jewelry. There are no visible maker's marks or stamps in the provided image. The ring shows signs of wear consistent with age and use, including minor abrasions on the metal and possibly some dullness on the clear stones. The construction features an open gallery work, allowing light to pass through the stones. The craftsmanship appears to be typical of mass-produced costume jewelry of its era, with individual stones prong or bezel set. The overall effect is ornate, aiming for a luxurious appearance.