Ace

Fact Yeah!
Ace's bounty, being at 550,000,000 Bellies before his death, is the highest amount revealed so far in the series.
Ace is the FIRST KNOWN Devil Fruit user to die.
In the manga and the special episode 3D2Y, his necklace is still intact. While in anime, his beaded necklace broke apart and fell all over the ground, and one bead ended up rolling to Whitebeard's foot, who picked it up tearfully.