This is a lovely shade of blue, clip-on earrings made by the Delizza and Elster Company.
The glorious AB coated rhinestones are set in silver-tone metal and all stones are bright and sparkling. The metal shows little, if any wear and the clips are tight and snappy. The earrings measure 1 and 3/4 inches in length and 1 inch across at the widest point. The back of the earrings display the D&E characteristic that confirms this to be a true item made by the company; those classic double-set chatons (figure 8's).
A lovely set of earrings and priced affordably.