I wrote ‘It is under the clear gem’, which should be accepted. The literal meanings of candidus, -a, -um from Lewis & Short: bright; an epithet of the gods or persons transformed to gods; of birds, animals, etc., white; of the dazzling whiteness of snow; of resplendent beauty of person, splendid, fair, beautiful; of the hair, hoary, white (more poet. than canus); of trees or plants; […]; poet. and causative, of the winds, making clear, cloud-dis-pelling, purifying; also poet. for candidatus (= albatus), clothed in white.