Her fiancé Kit Harington admitted that his proposal to her didn't quite go to plan, as he accidentally popped the question too early.
But Rose Leslie proved her other half hadn't taken any shortcuts when it came to her engagement ring, as she headed to London's Heathrow Airport on Sunday to catch a flight.
The Game Of Thrones actress, who was dating her fellow co-star for five years before he popped the question, went make-up free as she flashed the massive diamond sparkler.