Cardi B’s chaotic Met Gala night continues: Offset’s $150K chain now missing

The fallout from Cardi B’s chaotic night out at the Met Gala just got worse — about $150,000 worse.

The Bronx-born rapper’s fiancé, fellow hip-hop heavyweight Offset, checked out of their Lower East Side hotel room after the lavish event without his diamond tennis chain — and now the bling he values at $150,000 is nowhere to be found, police sources said.

The rap royalty couple headed back to their penthouse at Hotel Sixty LES on Allen Street in the hours after the Monday night gala — leaving the door to their room wide open behind them, sources said.

“They had left the door open so people could come in and out of the room,” one cop source said. “The door was left open even when they weren’t in the room.”

It wasn’t until Offset arrived in Atlanta a few hours later that he realized the pricey piece was missing.

The last time he’d seen it, it was in a jewelry bag on a table, sources said.

Offset got in touch with his manager, Danny Zook, who was still back at the hotel, but when staff searched the room, the chain was nowhere to be found, sources said.

Zook then called the cops, according to sources.

But, reached Wednesday for comment, Zook downplayed his involvement, and denied making the call.

“I didn’t really deal with it, so I don’t know much,” he said. “I have no comment.”

Messages left for Cardi B’s rep and SIXTY Hotels weren’t immediately returned.

The costly mistake capped a wild night for Offset, 26, and Cardi B, 25.

Hours earlier, just after the Met Gala, a member of Cardi B’s entourage roughed up an autograph seeker who they say got too close to the pregnant “Invasion of Privacy” rapper’s personal space.

Cardi B broke her silence on the incident early Wednesday in a tweet that was quickly deleted.

“If you check my tag pics I take a lot of pics with fans,” she wrote. “Some people are not fans & sometimes I don’t want no pics and I simply don’t want people too close cause of [my pregnancy].”

Giovanni Arnold, the 33-year-old self-described “autograph hound,” was treated at New York-Presbyterian Weill Cornell.

Cops are looking to speak with three members of the entourage suspected of being involved in the beatdown.

Additional reporting by Aaron Feis