Cluster-style ring with green and purple stones

This item is a ring featuring a large, cushion-cut or oval faceted green center stone, measuring approximately 15mm to 20mm in height based on relative proportions. The center stone is translucent with a table facet and surrounded by a halo of fourteen smaller, round-cut purple stones, which are bezel-set or in individual collets. The metal appears to be a darkened or patinated silver-tone material, consistent with sterling silver that has oxidized or an antiqued base metal. No maker's marks, hallmarks, or metal fineness stamps are visible in the provided image, so the material composition remains unverified without physical testing. The construction is a classic cluster or halo design, stylistically consistent with bohemian or costume jewelry from the late 20th century. The stones exhibit various internal characteristics; the green stone has an appearance consistent with dyed chalcedony, aventurine, or glass, while the purple stones are consistent with amethyst-colored glass or synthetic spinel. There is visible surface grime and darkening in the crevices of the settings, suggesting age or intentional oxidation for an antique aesthetic. Without a legible mark, the designer and metal purity cannot be asserted.

Based on my visual examination of the provided image, this ring is a cluster-style piece featuring a large green center stone surrounded by a halo of fourteen purple stones. I cannot determine the exact material composition from a photo, though the physical characteristics are consistent with dyed chalcedony or art glass set in an oxidized base metal or patinated sterling silver. No hallmarks or maker's marks were observed, which limits the ability to attribute this to a specific designer or verify metal fineness without physical testing. The construction and aesthetic are indicative of bohemian or costume jewelry from the late 20th century. My valuation range of $45 to $85 reflects the general market demand for vintage-style costume jewelry of this scale and condition. This estimate assumes the metal is a common alloy or low-grade silver; if the mounting were verified as high-purity gold or the stones as high-quality natural gemstones such as jadeite and amethyst, the value would increase significantly. Conversely, as a mass-produced reproduction or 'in the style of' an antique, the value remains at the lower end of the retail spectrum. To verify this estimate, an in-person inspection by a gemologist is recommended to confirm the identity of the stones and perform an acid test on the metal. The presence of surface grime and oxidation is typical for items of this age, but a lack of provenance or brand attribution necessitates a conservative valuation based on decorative merit rather than fine jewelry standards. Should the piece be linked to a specific sought-after designer through future research, the market value could potentially trend higher.