Vintage Faceted Glass or Crystal Jewelry Stones in Display Cases

This lot consists of three individual faceted round stones, likely glass or crystal, each presented in a small, black-and-transparent plastic hinged display case with a cream-colored foam insert. The stones feature a brilliant round cut with visible facets designed to maximize light reflection. The set includes a vibrant lime-green peridot-style stone, a deep pink ruby-style stone, and a dark navy or teal sapphire-style stone. The pink stone is notably distinguished by a gold-tone serrated bezel or decorative setting rimming the base, whereas the green and blue stones appear to be loose or minimally set. Based on the plastic casing and the saturation of the colors, these appear to be vintage costume jewelry components or loose rhinestones, possibly mid-to-late 20th century. The stones show high clarity without visible internal inclusions, suggesting they are synthetic or manufactured glass. The plastic display boxes show some minor surface scuffing and cloudiness consistent with age. There are no obvious maker's marks visible through the casing, but the uniformity in presentation suggests they were sold as a set or for a specific craft purpose. The craftsmanship is typical of commercial-grade faceted glass, intended for mountings in brooches, rings, or earrings.