Vintage-Style Black and Blue Gemstone Drop Earring

The item is a singular drop earring, likely intended to be part of a pair, or potentially a small pendant, featuring a prominent central black oval-shaped gemstone. The overall construction appears to be a metal, possibly gold-toned, though the exact metal type (e.g., brass, gold-plated, low-karat gold) is not discernible from the image alone. The design is ornate, with a curvilinear 'S'-shaped or vine-like element leading down from the top attachment point to the main central stone. Surrounding the large black oval gemstone is a halo of smaller, clear, round faceted stones, which appear to be diamonds or diamond simulants, set tightly together. Below the central black stone, there are two smaller, dark blue, perhaps sapphire or glass, oblong or marquise-cut stones. Another smaller dark blue stone is positioned above the main black stone, along the 'S'-curve. The top of the earring features a small loop for attachment to an ear wire or chain, and there are some small, clear stones set into this upper section as well. The metal shows some light patina or oxidation consistent with age or wear, particularly in recessed areas, suggesting it is not newly manufactured. The craftsmanship appears to be reasonably fine, with the stones set securely. The style evokes a vintage or antique feel, potentially late 19th to early 20th century, or a modern reproduction in that style. There are no visible maker's marks or significant damage, though a thorough inspection would require physical handling.