According to Page Six, the pair were spotted dining in New York City at Raoul’s, an upscale French restaurant.
“It was a giant rock. They seemed like they were celebrating and people were talking about it,” a source told Page Six.
“The ring was very noticeable. They were sitting back in a corner. She was wearing a cute black dress with white polka dots.”
Lawrence and Maroney, 34, have been seen on several date nights in the past week, after a source confirmed to WHO that the couple were dating in June.
Later that month, they were snapped enjoying a romantic candlelit dinner together.
Since then, their relationship has gone from strength to strength with an overseas trip to Paris and Rome in August.
A source revealed to WHO the couple were "very happy".