A foxy Russian model is suing her ex-sugar daddy, a married real-estate developer, claiming he tried to force her out of his Chelsea pied-à-terre and swiped her diamonds when she stopped sleeping with him.

In a salacious Manhattan Supreme Court lawsuit, Yana Gudkova says developer Brent Carrier, 55, of Larchmont, let her live for free in his posh Chelsea crash pad so she would be his mistress.

The Westchester millionaire kept saying he’d get a divorce, she alleges.

But in late 2015, Gudkova dumped him, after realizing he just wanted her to “be available to him as an occasional intimate companion whenever he wished,” says her lawsuit, which seeks unspecified damages for her lost things and emotional harm.

Carrier — president of Long Island City, Queens-based CRE Development — insists through his lawyer that Gudkova made up her allegations, at least most of them.

Gudkova did live in Carrier’s Chelsea apartment, but only “as a favor,” and the two were never intimate, said the lawyer, Steven Bagwin.

“It was an apartment he didn’t need or want,” Bagwin said.

“She was merely a guest,” he said, and he gave her back all of her belongings when she moved out, he said.

Gudkova, who moved to the US in 2013, is demanding Carrier return her jewelry, her $8,000 Rolex watch, Mac laptop, iPad Mini and a pair of snakeskin purses, one white and one black.