Look: 'Game of Thrones' star Sophie Turner's engagement ring from Joe Jonas

“Game of Thrones” star Sophie Turner is engaged to her boyfriend Joe Jonas. The social media-savvy pair revealed the news on Sunday through their Instagram posts.

Turner, who plays Sansa Stark on the fantasy drama, shared on Instagram a photo of her hand sporting a diamond ring on top of Jonas' hand. Alongside the photo, she wrote, "I said yes."

Jonas also posted the image to his own social media account with the caption, "she said yes." Some of their followers and family members were quick to send wishes to the couple.

Among them was Jonas' brother, Nick, tweeting, "Ahh! Congratulations to my brother and sister in law to be on your engagement- I love you both so much.”

Further details about Turner and Jonas’ engagement are not immediately available. The pair has kept their relationship low key ever since.

Jonas attended the Los Angeles premiere of “Game of Thrones” with Turner but did not walk the red carpet by her side. They have rarely appeared together on each other’s social media accounts and in paparazzi shots.

Turner has been dating the DNCE singer since 2016. Recently, they adopted a husky puppy, which has his own Instagram account. Jonas had formerly dated Taylor Swift, Demi Lovato and Camilla Belle.

The actress, now in her early twenties, is the latest “Game of Thrones” star set to marry. Her co-stars Kit Harington and Rose Leslie announced their engagement last month.

Harington and Leslie revealed their engagement with a post in The Times. "The engagement is announced between Kit, younger son of David and Deborah Harington of Worcestershire, and Rose, middle daughter of Sebastian and Candy Leslie of Aberdeenshire,” the post reads.

“Game of Thrones” season 8 will be shooting until next year. Harington has allegedly asked production to be put on a short hold next year so the cast can attend his wedding.

Harington and Leslie met on the set of “Game of Thrones.” Harington's character Jon Snow and Leslie's character Ygritte shared an on-screen romance. Leslie left the show in 2014.

The couple started their off-screen relationship in 2012 and bought a home together in January this year in East Anglia in the UK, according to rte.ie. The eighth and final season of "Game of Thrones" is expected to air in late 2018 or early 2019.