Cara Delevingne is once again sparking rumors that she and girlfriend St. Vincent are engaged after the model/actress was spotted sporting a diamond ring on her left ring finger during San Diego Comic-Con over the weekend.

Delevingne wore a large diamond ring on her left ring finger during the panel for Suicide Squad, and later shared a photo on Instagram, a regram from co-star Jared Leto, where she posed in a photo with the hand in front of her, showcasing the bling.

 #regram @jaredleto

A photo posted by Cara Delevingne (@caradelevingne) on Jul 25, 2016 at 1:52pm PDT

Neither one mentioned the ring or detailed the purpose of it in their photo captions, but it has sparked curiosity over whether Delevingne was announcing that she and St. Vincent, who have been dating for more than a year, were engaged.

It isn't the first time the pair have been rumored to be engaged however since their relationship went public last year. Earlier this year, while the two were in Paris at the Eiffel Tower, reports claimed that Delevingne had proposed to her girlfriend after witnesses claimed to see her getting down on one knee and apparently proposing to her girlfriend.

According to The Daily Mail, St. Vincent was then seen wearing a diamond ring on her finger following the trip.

The two also sparked rumors of a potential engagement and some commitment to their relationship during an appearance at a fashion event last October. The pair attended the Chanel show during Paris Fashion Week and sat in the front row, and were seen sporting identical diamond rings on their fingers which featured large stones in their centers.

That talk was never confirmed, and the pair have never been overly vocal about their romance either on social media or during any interviews, with only occasional posts on both their feeds that featured images of one another.

Before their romance, Delevingne was linked to Harry Styles (the romance was never confirmed), Michelle Rodriguez, and her Tulip Fever co-star Jack O'Connell.