A sexy thief in a low-cut top stole $70,000 in jewelry from the home of a Manhattan man with whom she spent an evening, cops said Thursday.

The suspect met the 24-year-old victim at his building on Eleventh Avenue and 42nd Street at about 4:30 a.m. June 4 — and was seen on video following him up to his residence, cops said.

“After spending time with the female, he awoke and discovered that his jewelry, valued at $70,000, was missing,” the NYPD said in a press release.

Investigators are now hunting for the woman, who is said to be between 5-foot-5 and 5-foot-8. She was last seen wearing a gray hooded jacket, dark pants and a low-cut cleavage-bearing top.