The man is to be brought before a magistrate later to face possible charges, a judicial source said.
Five men tied her up, gagged her and locked her in a bathroom, before making off with USD 10.6 million in jewels, including her four-million-euro diamond engagement ring.
The robbery was the biggest of an individual in France in the past 20 years.
One of the robbers fleeing the scene on a bicycle dropped a diamond-encrusted cross worth 30,000 euros, which was found by a passer-by a few hours later.
It remains the only piece to be recovered from the heist.
The suspected ringleader, 60-year-old Aomar Ait Khedache, told investigators he had struggled to find a buyer for Kardashian's 18.88-carat ring, which she had flaunted on Instagram.
Ait Khedache said it was "too recognisable" and that he had given it to an unidentified third party.
The police believe part of the loot was sold in Belgium.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)