Débutant 22++ Real Jeanne Toussaint Necklace. According to harper's bazaar, the necklace was created in 1931 by jacques cartier and was named after the fashion house's iconic creative director of the 20th century, jeanne toussaint. The cartier toussaint necklace at the centre of the heist in the ocean's 8 film does actually exist, and was created in 1931 by jacques cartier. Named after cartier's former creative director, the jeanne toussaint necklace actually existed in real life.