Vintage Purple & AB Rhinestone Clip-On Earrings

This is a pair of vintage clip-on earrings, likely from the mid-20th century, possibly 1950s or 1960s. Each earring features a central, iridescent 'Aurora Borealis' (AB) rhinestone cabochon, exhibiting a spectrum of colors including blues, purples, and greens, nestled within a gold-toned metal setting. Surrounding this central element are clusters of smaller, round-cut AB rhinestones, forming a radiating halo or cluster design. Cascading downwards from the central clusters are three marquise-cut rhinestones in a deep, translucent purple or amethyst hue, arranged in a fan-like or floral-inspired dangle. The metal appears to be a gold-tone base metal, possibly brass or a gold-plated alloy, given its vintage context and typical costume jewelry construction. The settings for all rhinestones are prong-set, a common and secure method for costume jewelry. The overall construction suggests a good quality for vintage costume jewelry, with all stones securely set. There are no immediately visible missing stones or significant damage to the metalwork. A slight patina or mild tarnish common with age might be present on the metal, which contributes to its vintage character. The clip-on mechanism is visible on the reverse (though not clearly depicted in the provided view, but inferred from the item type). The design is elaborate and decorative, typical of period costume jewelry, often designed to mimic more expensive fine jewelry. The condition appears to be good with minimal visible wear, suggesting they have been well-preserved for their age. There are no discernible maker's marks or signatures visible from this angle, which is common for many unsigned vintage costume pieces.