The 30-year-old model was spotted wearing the new sparkler in Los Angeles on Wednesday.
Irina Shayk, bride-to-be?
The 30-year-old Russian supermodel, who is expecting her first child with Bradley Cooper, was spotted out and about in Los Angeles on Wednesday with a ring on that finger, sparking rumors that she and her longtime boyfriend may be engaged.
Shayk wore a long-sleeved, loose-fitting black mini dress with thigh-high suede boots for the outing, but it was hard not to the notice the massive sparkler on her left hand.
The jewelry features a giant oval emerald, encircled with gorgeous diamonds.
"Irina took an Uber at 11 a.m. to a wax center, then she headed to a nail salon and a hair salon after that," an eyewitness told ET. "She had a relaxing day of pampering herself. She was out all afternoon, smiling and in a great mood."
ET has reached out to Cooper and Shayk's reps for comment.
WATCH: Irina Shayk Shows Off Tiny Baby Bump at Victoria’s Secret After Party: Pics!
Last month, Shayk debuted her adorable baby bump while walking the runway at the Victoria's Secret Fashion Show in Paris, France. While it was semi-concealed by a fringe cape and long trench coat as she modeled the lingerie, she had no problem putting her burgeoning belly on full display at the show's official after-party at Le Grand Palais.
To hear more (and see the pics!), watch the video below.