The show's official Twitter feed confirmed that the 28-year-old has quit the show.
"Jem has left the Diary Room and is now packing with a view to leaving, but will there be any last minute doubts?" a message read.
"Big Brother has just made an announcement to the House, Jem has been called to the Diary Room and is hugging Faye goodbye."
On the official live feed from the house, it was confirmed that Jem entered the Diary Room to talk to Big Brother, while Faye was "looking upset" in the garden.
"Jem is still talking to Big Brother in the Diary Room, could she be changing her mind?" it queried.
A final tweet then confirmed: "Jem has left the Big Brother House."
Jem had earlier today played a key part in winning a £300 shopping budget for the house together with Jay McKray and Louise Cliffe in the Place Your Bets task.
She had been put up for eviction alongside Aaron Allard-Morgan on Tuesday after the twist nominations made by the housemates' family and friends.
Watch Faye Palmer being comforted by Alex Rose and Louise below: