Vintage Purple Glass Navette Pendant Necklace

This item is a vintage-style decorative pendant necklace featuring a central, large violet or purple glass stone. The stone is faceted in an oval or teardrop shape and is securely nestled within an openwork, navette-shaped (marquise) metal frame. The frame features a scalloped lower support structure with filigree-like cutouts, while the upper shoulders of the frame are embellished with two rows of small, dark inset stones (possibly marcasite or dark crystals) that add a subtle sparkle. The metal components exhibit a yellowish-gold or brassy tone with significant signs of surface wear and oxidation, particularly at the bottom tip of the pendant where the plating appears worn away to reveal a darker base metal. The pendant is suspended by two integrated loops from a medium-gauge linked chain with flat-sided oval links. Based on the construction style and the visible wear patterns, this piece is likely mid-to-late 20th-century costume jewelry. The general craftsmanship suggests mass production rather than fine jewelry, indicated by the uneven patina and the style of the stone setting. No visible maker's marks or stamps are apparent in the image.