Actress Kaley Cuoco is engaged and proud of it. Just hours after confirming she said “yes” to her boyfriend of three months, professional tennis player Ryan Sweeting, “The Big Bang Theory” TV star was seen showing off her massive engagement ring from the athlete.

People magazine was the first to share the photos, which show the 27-year-old actress running errands in L.A. Thursday while casually flashing her engagement ring, described by the magazine as appearing to be a “sizable rock with a diamond embedded band.”

See Kaley Cuoco's engagement ring photos here.

The images were posted just hours after Cuoco announced her engagement to Sweeting, a 26-year-old Nassau, Bahamas, native. A rep for the award-winning actor confirmed to People magazine Thursday that the twosome are officially engaged to be married. The announcement comes just after three months of dating and less than one week after the pair made their relationship public by attending the 2013 Emmy Awards together Sunday.

According to a report from Us Weekly, the newly engaged pair didn’t think twice about their decision to tie the knot so early in their relationship. “It’s only been three months but she knows Ryan is the one,” an insider close to the actress told the magazine Thursday, adding, “When you know, you know.”

Throughout their short courtship, the twosome have not been shy about sharing details of their relationship on social media. “Great date ever ryansweething” Cuoco shared on Twitter Sunday alongside a photo of herself and her then boyfriend. On Wednesday, one day before their engagement was confirmed, Cuoco tweeted another sweet message to Sweeting: “Flying high, I could literally touch the sky with you.” Sweeting has previously shared similar sentiments, calling Cuoco “the most beautiful girl” and writing on Instagram Monday: “A million people, all I see is her.”

Cuoco is currently starring in the seventh season of the hit comedy “The Big Bang Theory,” which airs Thursday at 8 p.m. ET on CBS.