This month Juju Ivanyuk is the mythical mermaid, a bejeweled siren for Vogue Spain’s June jewelry supplement. Koray Birand captures the smoldering Juju, glistening in gems styled by Marina Gallo using designs from Herve Leger, Elie Saab, Victoria Beckman, Vionett and others for sartorial support of the water baby theme. /Hair by Laurence Mole; makeup by Ali Riza Ozdemir.