Gold Hoop Earring with Post and Notch Closure

This item is a single circular hoop earring, approximately 25mm to 35mm in diameter, constructed from a yellow-tone metal, likely 10k or 14k gold or a high-quality gold plating. The earring features a tubular, hollow construction that allows for a lightweight feel despite its medium-to-large profile. The design is a classic, high-polish hoop with a modern minimalist aesthetic. A key distinguishing feature is the integrated hinge mechanism at the top, which supports a thin, straight post (or ear wire). The post is designed to snap into a small u-shaped notch on the opposing side of the hoop for a semi-seamless visual appearance when worn. In terms of condition, the metal displays a soft patina with fine surface scratches consistent with use and age. There is a slight darkening or tarnishing near the hinge and the tip of the post, which may indicate a base metal core if the item is plated, or simply accumulated bio-matter if solid gold. No clear hallmark or maker's mark is visible in the provided image, though such stamps are typically found on the ear post or the inner surface of the hinge. The craftsmanship appears to be commercial grade, dating likely from the late 20th century to the early 21st century. The earring shows no major deformities or kinks in the round shape, suggesting it has been well-maintained.