Lovely pair of vintage cyclade hoop earrings are likely resin or lucite. They are wrapped in gold wire that I believe may be gold plated but I see no signature or hallmark. Pierced earrings on posts are 1.25” in diameter and 1/4” thick. They are super light and in ready to wear condition. Monet made a similar earring and Gas Bijoux shows very similar earrings as a current look for Anthropologie.