12K Yellow Gold Filled Screw Back Earrings Multicolor Signed CM

Small 12k Yellow Gold Filled Screw Back Earrings Embellished with a rainbow of prong set, multicolor faceted glass stones Signed CM and 1/20-12KT yellow gold filled. I have searched for the stylized CM mark and cannot attribute these cuties to a maker. No missing stones, finish loss on the yellow gold or other damage.