The culprits escaped with a ring worth about $4.5 million and a jewelry box containing other items worth $5.6 million, judicial sources said at the time.
At the time of the assault, a source with knowledge of the hotel's security said an overnight watchman was on duty when he was overcome by armed men. They took the key to where Kardashian West was staying and ran around the building trying to find the correct apartment.
Once inside the apartment, the men tied up Kardashian West and put her in the bathroom, the source said. The robbers seemed to have known that security was light, which triggered speculation the heist may have been an inside job.
The star was left "badly shaken but physically unharmed" after the incident, her spokeswoman said.