Vintage Gold Bar Brooch with Amethyst Gemstone

This is a vintage bar-style brooch, approximately 1.5 to 2 inches in length, crafted from yellow gold (likely 10K or 14K based on the color and style). The central focal point is a four-prong set, oval-cut natural gemstone, appearing to be a deep purple amethyst. The gemstone is encased within an interlaced, circular gold knot or 'love knot' motif, signifying a Victorian or Edwardian influence. Flanking the center are polished bar shoulders that transition into open-work infinity loops or figure-eight knots, typical of jewelry from the early to mid-20th century. The piece features a traditional hinged pin and C-clasp mechanism, which appears slightly bent but functional. The gold surface shows a warm patina and minor surface micro-abrasions consistent with age and occasional wear. The stone shows good saturation and clarity with no visible chips at this resolution. While no hallmarks are immediately visible on the outer surfaces, they may be present on the pin stem or the reverse of the clasp. The overall craftsmanship suggests a high-quality commercial piece from the 1920s-1940s, blending sentimental symbolic elements with streamlined Art Deco geometry.