The Calista Necklace is delicately strung with turquoise-colored beads paired with colorful fish charms. The Calista Necklace is delicately strung with turquoise-colored beads paired with colorful fish charms. Jewelry brand Mignonne Gavigan tells a story of wearable artistry, exquisite craftsmanship, and boundless creativity. The brand instills each piece with a passion for global travels and exploration, embodying the spirit of adventure and individuality.