Alessandra Ambrosio and Buck Palmer announced their engagement on Instagram Tuesday, sharing photos from a romantic beach proposal where Palmer got down on one knee inside a heart made of flowers in the sand.
Ambrosio, 45, captioned the post: “I’d choose you in this life and every life. Here’s to forever, my love.”
Palmer, 44, had previously shared his own feelings in an Instagram post recapping his 2024, writing: “To top off this year finding and falling in Love with such an amazing partner, someone who inspires me daily, someone in which we have so much fun in the ordinary, someone who ignites a passion for life and makes everything more bright … im So so glad I found you again my [heart]. I couldn’t be more thankful.”
The proposal featured romantic details.
Palmer presented Ambrosio with an engagement ring as she stood in a bikini, with a perfectly drawn heart in the sand adorned with tropical red flowers surrounding them.
The couple also showed off what appeared to be matching heart tattoos on their wrists in another snapshot from the proposal.
In a final clip from the post, they waved at a drone camera while embracing in the center of the heart.
Fans flooded the comments with congratulations.
Alessandra and Buck were first linked as a couple in January 2025 when they were spotted together on vacation in Rio de Janeiro, Brazil, after Buck had confirmed their relationship while recapping his 2024 in an Instagram post days earlier.
Earlier engagement speculation had built up over months.
In June 2026, the 44-year-old was photographed wearing a large gold ring with a prominent diamond on her left ring finger, immediately sparking engagement rumors surrounding her relationship with Australian jewelry designer Buck Palmer.
Back in March, Ambrosio had opened up about the relationship.
At the Clarins ICONS Event, she said about Palmer: “We just love life to the fullest.”
She told Us Weekly exclusively that she and Australian jewelry designer Buck Palmer have bonded over their shared “passion for life,” noting they began dating late in 2024.
Buck is an Australian jewelry designer whose brand emphasizes adventure and unconventional living.
Palmer is originally from Australia but now lives in Los Angeles, and was previously married to Ashley Hart, a model herself and sister of Victoria’s Secret model Jessica Hart.
Ambrosio shares children with her former fiancé.
She was engaged to businessman Jamie Mazur from 2008 to 2018, though they never tied the knot, and they share daughter Anja, born in 2008, and son Noah, born in 2012.
In the viral moment that set the stage for their public romance, Ambrosio and Palmer made their relationship official at an upscale event.
Alessandra and Buck went public with their relationship in mid-December 2024.
Ambrosio and Palmer became Instagram official in November 2024, with a source telling Us at the time that the couple had only been dating “for a few weeks” and their romance was “super new,” but they “really like each other.”
The Brazilian model wrote in a birthday tribute to Palmer on Instagram, “❤️ you, birthday boy!!! 🎂🎈💋,” as she shared a montage video including various photos and clips of the pair traveling together and posing on the beach.
Later that same month, the couple shared more PDA.
Ambrosio posted romantic snaps of herself and Palmer kissing on a beach in Praia Brava, Brazil, adding three love heart emojis in the color of the Brazilian flag in the caption.
The couple appeared publicly together at multiple events.
Ambrosio and Palmer went Instagram official in December 2024 and have hit the red carpet together several times since then, with Palmer cheering on Ambrosio at the Victoria’s Secret Fashion Show on Wednesday, October 15.
Ambrosio seemed serious about the relationship early on.
On January 2, Ambrosio wrote alongside a photo of the pair embracing on Instagram: “☀️First sunrise of 2025 to bring in the new year, left the party to enjoy a special moment witnessing nature put on a show for just the two of us… magic! 💫.”
Fans took to social media to celebrate the news.
One comment on the Instagram post read, “well hello mrs. palmer,” while another gushed, “How beautiful!!! Long live love! ✨”
Before this relationship, Alessandra was linked to Richard Lee.
The couple has been vocal about their shared values.
The supermodel has gushed about her life as a mother, telling Us that she loves being a mom of two.