1960s rhodium plated prong set light blue rivoli rhinestone with small round aurora borealis center stone and small round light blue rhinestones surround with marquise and round light blue rhinestones brooch with security clasp. Unmarked Delizza and Elster. Measures: 2 3/8 inches long by 1 5/8 inches wide. Condition: Very good; minor wear. The matching earrings are shown on pg. 155 of Katerina Musetti's book "The Art of Juliana Jewelry."