Who hasn't dreamed of taking part in a diamond hunt? What's more, it's completely free! Until August 30, 2024, Messika is transforming the Champs-Élysées into a glittering playground every day. The objective? Decipher the riddles on the Maison de joaillerie's social networks, uncover the clue and try to win one of the five exclusive jewels up for grabs!