May 20, 2015 04:47 PM

The majority of Hollywood may be debuting their newest films at the Cannes Film Festival this week, but Josh Brolin used his Sicario premiere to do double duty, showing off his film and his gorgeous bride-to-be — along with her stunning sparkler!

Clemens Bilan/Getty

The 47-year-old actor and his fiancée, model Kathryn Boyd, happily posed together on the red carpet, where the cameras caught the first glimpse of her bling since they announced their engagement earlier in the week. Not that they could have missed it: The ring features a large round stone set prominently above what appears to be a filigree and diamond-embellished band.

Boyd paired her brand-new accessory with a carmine-red floor-length gown with ruffle and zipper detailing and an elegant braided updo, while Brolin opted for a navy two-piece tuxedo and a stylish black bow tie.

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The Labor Day actor popped the question about two months ago, after beginning to date the model last February. The happy couple appeared to be celebrating the engagement in Cabo San Lucas on Friday, a source tells PEOPLE. Packing on the PDA, the couple “were all over each other — taking selfies and kissing,” while enjoying a dinner with about 20 guests.

What do you think of the star’s sparkly stunner? Gorgeous or too much? Sound off below!

–Sarah Kinonen

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