Socialite Samantha Perelman enjoyed a very lavish 30th birthday weekend in the Hamptons — complete with monogrammed masks for revelers.

The daughter of billionaire investor and Revlon chairman Ron Perelman has had pals staying with her at her home on Lily Pond Lane during the COVID-19 lockdown, we’re told.

The blonde held celebrations at the East Hampton house, which she inherited from her mother, the late, legendary Page Six editor Claudia Cohen.

Partiers also partook in a dinner at Sag Harbor hot spot Le Bilboquet, and Perelman was turned into the queen on a “Game of Thrones” poster, which read “Bow Down It’s Sam’s Birthday.”

Some guests donned black masks emblazoned with “SOP is 30,” and Perelman was gifted at least three surprise cakes over the weekend.

She wrote on social media: “Another year, another decade older #thisis30.”