Vintage Burgundy / Purple Tri

Vintage three stone screw back earrings. Burgundy / red / purple colored gemstones set in gold tone metal. In great condition for age. No hallmarks. Screw back design. Approximately .5" Note: Most of my jewelry is pre-loved. I only wipe down jewelry. I do not deep clean any jewelry before shipping. I am not a professional and do not want to risk damaging any vintage item. I will note any flaws/defects. Lighting might affect the colors in the photos. I will try to describe as accurately as possible. Please see all photos and do not hesitate to ask questions.