This is a gorgeous pair of vintage hand prong set blue iridized or aurora borealis cluster rhinestone clip earrings in gorgeous shades of blue made by DeLizza & Elster, USA in the 1950s.

The earrings measure 1.25 inch high by .85 inch wide and are unmarked,  but as not all items were marked, I checked and found  the same pair is on the D&E identification website.

They are in excellent condition and very elegant! LOVE the color!A wonderful bit of vintage glamour for your next tea  party.