Vintage 9K Gold Plated Hoop Earrings With Deep Pink Ruby (?) Stones

Vintage exotic hoops earrings. With prong set deep pink and clear stones. The red ones look like semi-translucent rubies, but I don't know enough to say for sure. The clear ones are either colorless sapphires, or crystals. Stamped with what looks like 9K. I think they are 9 karat gold plated because of some signs of wear exposing silver tone metal underneath.