Fab vintage Jmid century uliana sapphire blue open backed marquise rhinestone pin with ONE SINGLE EARRING. This rich blue rope and leaf series beauty is Circa 1962. It is a Juliana DeLizza and Elster (D&E) book piece.
Perhaps you can put the single earring on your purse or hat?
The pin measures 2 1/2" long and 1 3/4" wide. All marquise stone tips are present. Wonderful shape!