Based on the visual features of the jewelry, these clip-on pieces appear to be vintage costume earrings from the 1980s or 1990s. The selected region highlights a ridged, shell-like gold-tone earring, which is characteristic of the "bold gold" aesthetic popular during that era. Jewelry Details Design Style: The set includes two distinct pairs: Ribbed Shell Studs: Gold-tone earrings with a fanned, fluted design similar to a scallop shell. Green Cabochon Drops: Larger gold-tone clip-on or post earrings featuring a prominent, oval emerald-green cabochon (possibly lucite or glass) set against a stylized leaf or wing-like metal backing.