Mysteryjoy was founded in Paris by Joy Toledano, a diamond specialist trained at HRD Antwerp and a gemologist from the Institut National de Gemmologie, who spent several years designing for an established jewelry house before starting the label on her own. Working in 18-carat gold and lab-grown diamonds, each piece unfolds like a secret, its mood drawn from eighteenth and nineteenth century fairy tales and the mysterious stories she invents at night. Symbols recur across the collection like a personal alphabet.