Teardrop Onyx and Marcasite Sterling Silver Filigree Ring

This is a vintage-style cocktail ring featuring a prominent pear-shaped (teardrop) black gemstone, likely black onyx or a similar opaque synthetic stone. The central stone is set in a raised gallery, surrounded by an intricate openwork filigree border crafted from what appears to be patinated sterling silver. This border is embellished with small, glinting round-cut stones that characteristic of marcasite, popular in Art Deco and Victorian revival jewelry. The ring head measures approximately 15mm to 20mm in length, sitting prominently on the finger. The metalwork displays a darkened patina in the recessed areas, which enhances the decorative scrollwork of the filigree and provides a stark contrast against the high-polish finish of the focal stone. The band appears to be a solid, thin shank matching the metal of the setting. Regarding condition, the central stone appears securely set with a smooth surface, free of major chips, while the metal shows expected light surface scratches and tarnish indicative of age and gentle wear. No maker's marks are visible in the photograph, but the craftsmanship suggests a mid-to-late 20th-century production, likely influenced by Edwardian or Art Deco design periods. The overall quality reflects a well-made piece of sterling silver costume or fine jewelry.