Jeff Bezos dethrones Bernard Arnault to reclaim the crown of the world's richest person.

Bezos's net worth is $209 billion, and his wealth has grown by $32 billion since the start of this year as Amazon stock has jumped nearly 25%.

Arnault, the CEO and chairman of luxury goods group LVMH Moët Hennessy, has a $208 billion net worth, slightly behind Bezos.