Diana Penty began her journey as a successful fashion model, walking prominent ramps and representing leading brands before transitioning to film with a memorable debut in Cocktail (2012), earning critical acclaim and award nominations for her poised performance. She then delivered a charming lead performance in the sleeper hit Happy Bhag Jayegi (2016), and went on to portray strong, grounded characters in films like Parmanu: The Story of Pokhran (2018), Shiddat (2021), and the streaming films Bloody Daddy (2023), Adbhut (2024), and Chhaava (2025).

Off-screen, Diana has maintained a refreshingly down-to-earth public persona. She has spoken candidly about her long-term relationship with Harsh Sagar, whom she regards as her partner “in her head” long before public marriage acknowledgment. Reflecting on her early career, she revealed how nearly being cast opposite Ranbir Kapoor in Rockstar taught her humility and shaped her path—an experience she now sees as a blessing in disguise.