Mixed-Metal Prong-Set Faceted Prasiolite Hinged Bangle

This is a hinged bangle-style bracelet featuring a prominent center stone. The primary material appears to be sterling silver, with decorative accents in a contrasting rose gold or copper-toned metal. The center-piece is a large, oval, rose-cut or checkerboard-faceted gemstone, likely prasiolite (green amethyst) given its pale, mint-green hue. The stone is held in place by a secure four-prong setting. Flanking the gemstone are two decorative rondelles with beaded detailing in the contrasting secondary metal. The band of the bracelet is tubular and tapers slightly towards the clasp. Regarding condition, the piece shows significant signs of wear and age, including noticeable oxidation and tarnishing on the silver surfaces, particularly near the hinges and prongs. There is also evident copper-colored metal wear or plating loss on the decorative beads. The interior of the band shows a rectangle-shaped hallmark or maker's stamp, though the specific lettering is not clearly legible from the image. The style is contemporary with a nod to classic artisan design, suggesting a late 20th or early 21st-century manufacturing date. The construction uses a side-hinge mechanism typical of luxury costume or semi-precious fine jewelry.