Metal Chain Necklace with Teardrop Color-Shifting Pendant

The item is a necklace featuring a pendant. The chain appears to be a single strand, possibly a rope chain style, crafted from a silver-colored metal. It has a lobster claw clasp at one end, indicating it's designed to be worn around the neck. The pendant is a teardrop or pear-shaped cabochon stone, exhibiting a captivating optical effect. The stone is approximately a centimeter or two in height and is set in a simple metal wire cradle that encircles the base and tapers towards the top, forming a bail for attachment to the chain. The stone displays prominent color shifts, appearing blue in some areas and a warm orange or reddish-brown in others, suggesting it could be a stone with iridescence, adularescence, or possibly a synthetic material like glass with embedded foils or dichroic properties. There are no visible manufacturer's marks or stamps on the chain or pendant. The overall condition appears good, with no obvious signs of damage or excessive wear visible in the image. The craftsmanship seems relatively simple, highlighting the unique properties of the pendant stone.