Gold-Tone Necklace with Oval Dark Gemstone Pendant

The item appears to be a pendant necklace featuring a single oval-cut, dark-colored gemstone, likely a sapphire or a similar dark blue/black stone, set in a simple bezel or prong setting. The metal of the setting and the chain appears to be a gold-tone, possibly yellow gold, gold-filled, or gold-plated, though its exact purity or composition cannot be determined without clearer hallmarks or testing. The chain is a delicate box chain or a similar fine link style, exhibiting some slight kinking or bending indicative of use or storage. The overall condition of the metal appears to have some minor wear, potentially light scratches or minor discoloration consistent with age and regular wear. The gemstone itself seems to be in good condition with no obvious chips or cracks visible from the provided angle. There are no discernible maker's marks or signatures visible in the image. This type of necklace often dates from the late 20th century to contemporary times, given its relatively simple and classic design. The craftsmanship seems standard for mass-produced jewelry, without exceptional handcrafted details visible, but the setting appears secure. The size of the pendant seems modest, suitable for daily wear.