:max_bytes(150000):strip_icc()/finneas-claudia-sulewski-engaged-getty-fb-0925-8c168db42b554e24ac90dbae2aa7dac3.jpg?ssl=1 "Finneas Proposed to Claudia Sulewski With a 0K Antique Cushion Cut Diamond Ring")
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Key Takeaways
- Finneas is engaged to his longtime girlfriend, Claudia Sulewski. The two have been together for seven years.
- Finneas, a music producer and brother of Billie Eilish, proposed at sunset with a 6-carat antique cushion cut diamond engagement ring.
- Experts exclusively tell BRIDES that the ring is valued at $350,000.
Music producer Finneas—who is also Billie Eilish’s brother and a regular collaborator—is engaged to his girlfriend of seven years, Claudia Sulewski! The couple announced the happy news in a joint Instagram post yesterday, September 24, 2025. “forever and ever 9.22,” the caption simply stated, implying that Finneas popped the question earlier this week. The post is made up of eight photos and videos, which seem to have been taking shortly before or after the proposal.
In the first photo, the couple appears to be hugging while taking in the view of sunset from a scenic hilltop space. In subsequent slides, the couple takes fans inside the actual proposal. First, there’s a video clip of a helicopter ride, ostensibly taking the couple to their engagement location. Then, there’s a video clip of the couple hugging and dancing before Finneas backs away and gets down on one knee.
Other photos show off the bride-to-be’s brand-new engagement ring, an antique cushion cut diamond on a thin band. According to Benjamin Khordipour at Estate Diamond Jewelry, the center stone is likely a 6-carat elongated antique cushion cut diamond that “is very spready.” “This antique cushion cut diamond ring is truly stunning, and it holds particular significance for us as specialists in antique diamonds,” he adds.
Gilbert Flores / Contributor / Getty Images
Khordipour notes that the diamond isn’t just large and beautiful—it’s also extremely high-quality. For color, he notes that is like E-F, and the clarity would be rated at VVS. “The center diamond is remarkable not only because it is an antique cut, but also because it sits almost as flat as a rose cut while displaying the faceting of an antique cushion,” our pro also notes. “This unique combination highlights its broad facets, giving the stone an especially bold and impressive appearance.”
As for price, Khordipour says this ring, which he believes is set in platinum, would be valued at $350,000.
The couple has never been shy about their relationship. Within hours of meeting, Finneas wrote the song “Claudia” about his now-bride-to-be, People reports. And Claudia was just as smitten from the start. “We’re pretty deep in it at this point—we’ve been dating for almost four years, so I think the cat’s out of the bag,” Claudia told Vogue in 2022.
Famous friends were quick to join in on the excitement, wishing the happy couple the best as they embark on this new stage of their relationship. “YAYYYYAYAY!!!!! Congratulations you 2!!!! 😍😍😍,
Hailee Steinfeld commented. Actor Aaron Paul simply dropped three heart emojis. From singer Renee Rapp came, “Holy shit congratulations❤️❤️💐💐,” while fitness influencer and TV personality Amanda Kloots wrote, “Omg YOU GUYS!!!!! Congratulations!!!!❤️”
