Two of the three bandits wanted for pulling off a brazen $4 million jewelry heist in Manhattan’s Diamond District are known to the NYPD — and investigators believe they’ve ID’ed them through facial recognition technology, police sources told The Post on Wednesday.

The thieves knocked off Avianne & Co. Jewelers at 28 W. 47th St. in a gunpoint stickup Sunday after they were buzzed into the store.

They told workers they were there to buy rings, and then two of the robbers pulled out guns and forced an employee to open the store’s safes.

The trio bound the four workers with zip ties and duct tape before they ran off with a massive load of bling, sources have told The Post.

Surveillance footage shows the fleeing thieves running east on West 47th Street before hanging a right on Fifth Avenue and heading south toward West 45th Street — where cops’ surveillance-footage trail goes cold, a source said.

The crooks were gone when cops arrived.

NYPD Chief of Detectives Dermot Shea said Wednesday that the department has “received a number of tips” related to the heist.

But no arrests have been made.