Ornate Gold-Tone Drop Earrings with Central Element and Clear Gemstones

A pair of antique or vintage ornate drop earrings, likely crafted from gold-toned pot metal or brass, featuring a central rectangular element surrounded by an openwork filigree border adorned with set gemstones. Each earring comprises a main decorative medallion suspended from a lever-back ear wire. The central rectangular element in each earring appears to be a light-colored, possibly mottled or veined material, possibly bone, shell, or a natural stone, with visible discoloration or patination, perhaps even a subtle image or design, though this is not clearly discernible from the image. Surrounding this central piece are eight clear, faceted gemstones, possibly rhinestones or glass, set in a quadrant pattern, with four larger stones at cardinal points and four smaller ones in between, all appearing to be square or cushion-cut. The metalwork is intricate, with scrolled or floral-inspired motifs forming the bezel settings for the stones and the openwork frame. The gold-tone finish exhibits some wear and rubbing, typical of older pieces, particularly on the raised areas and the lever-back mechanisms. The lever-backs appear to be functional but show signs of age and slight tarnishing or loss of plating. The overall style suggests a period likely from the late 19th to early 20th century, possibly Art Nouveau or early Art Deco, given the decorative filigree and stone arrangement. There are no visible maker's marks or signatures in the provided image. The craftsmanship appears to be commercial grade for its era, designed for decorative appeal rather than high-end precious metal content.