Emerald-cut glass or gemstone pendant in a gold-tone setting

This small rectangular pendant appears to feature a large, emerald-cut central stone in a deep orange-red or brownish-red hue, which is consistent with gemstones like garnet or citrine, though it could also be colored glass or synthetic material. The stone is held in place by four small prongs at the corners of a gold-tone metal setting. The bail of the pendant is accented with five small, round clear stones that are stylistically consistent with diamonds, white sapphires, or cubic zirconia. These small stones are pave-set or grain-set into the vertical channel of the bail. The metal has a warm, yellow-gold appearance, but without visible hallmarks or a professional acid test, it is impossible to determine if the material is solid gold, gold-filled, or gold-plated brass. The overall design is consistent with late 20th-century or contemporary fine-style jewelry. Small fibers or hairs are visible on the surface of the piece, but there are no obvious chips or cracks in the stones visible from this angle. The identification is considered a hypothesis as no maker's marks or metal stamps are discernible in the image.

Based on my visual examination of the image, I have analyzed this rectangular pendant featuring an emerald-cut central stone in a deep reddish-orange hue. The piece is set in a yellow gold-tone mounting with a stone-accented bail. While the central stone is stylistically consistent with garnet or citrine, I cannot determine from a photo if it is a natural gemstone, synthetic material, or colored glass. Similarly, the clear accents could be diamonds or cubic zirconia, and the metal could range from solid 14k gold to gold-plated brass. I have assigned a value range of $40-$120 under the hypothesis that this is a contemporary fashion jewelry piece made of gold-plated silver or low-karat gold with semi-precious or synthetic stones. In the current secondary market, demand for unattributed bridge jewelry of this style is stable but modest. The value is heavily dependent on the materials; if physical testing were to identify the metal as solid 14k gold and the stones as natural garnet and diamonds, the value could increase to the $250-$400 range. Conversely, if identified as gold-toned base metal and glass, the value would likely sit below $20. To provide a more precise valuation, a physical inspection is required to check for hidden hallmarks, perform an acid test for metal purity, and conduct a professional gemological assessment using a refractometer. Without provenance or manufacturer markings, this remains an unattributed piece. This estimate assumes the item is in good condition with no hidden chips or structural integrity issues, though some surface debris is visible in the provided image.