Gold-Toned Semi-Circle Gemstone Stud Earrings

This is a pair of relatively small stud earrings, each featuring a semi-circular, cabochon-cut gemstone set within a gold-toned metal bezel. The gemstones appear to be a translucent, milky white to very pale blue or 'moonstone' like material, exhibiting a soft glow or adularescence. Each gemstone is prong-set or bezel-set along its curved edge within a 'U' or 'cup' shaped metal component. The metal appears to be a light gold color, possibly yellow gold or gold-plated base metal, and shows a slight dullness, suggesting some wear or patina. The construction indicates a solid post-back finding, typical of stud earrings, which features a round disc or flat plate at its base, designed to secure the earring to the earlobe. The backs of the earrings show the post and the butterfly finding (though the actual butterfly clutch is not present), indicating they are designed for pierced ears. No specific maker's marks or stamps are visible in the provided images, which might suggest they are mass-produced or a vintage item where such marks have worn off. The overall style is simple and minimalist, leaning towards a modern or contemporary aesthetic, though the use of a cabochon stone could also hint at a vintage sensibility, possibly mid-20th century to present. The condition appears to be good, with no obvious chips or cracks in the gemstones, and the metalwork seems intact, albeit with minor surface wear consistent with gentle use. The craftsmanship appears to be functional and standard for costume or semi-fine jewelry.