The English singer-songwriter, 35, married David Harbour at a Las Vegas chapel on Sunday, clad in a double-breasted, vintage-style Dior dress. And Allen’s new diamond wedding ring — which she flashed on her Instagram Stories on Wednesday while showing off her heart-themed manicure — is every bit as timeless.

The “Smile” hitmaker’s pavé wedding band perfectly matches her classic solitaire engagement ring, which is similarly set on a sparkling band.

“Her wedding band appears to feature more than 12 diamonds, with an estimated total weight between 1 and 1.5 carats set in white gold or platinum,” Brilliant Earth‘s SVP of merchandising and retail expansion, Kathryn Money, told Page Six Style. “Lily’s timeless engagement ring appears to feature a 2- to 2.25-carat round brilliant diamond set with double claw prongs on a delicate white gold or platinum diamond-accented band.”

Money added that those looking to purchase an engagement ring like Allen’s should be prepared to spend between $25,000 and $40,000, while a similar pavé diamond wedding band would cost anywhere from $5,000 to $12,000, depending on the quality of the stones used.

Shannon Delany-Ron, director of communications at JamesAllen.com, shared similar estimated carat counts for both rings, calling them “classic styles [that] make a perfect pair.”

And while Rare Carat founder Ajay Anand estimates Allen’s engagement ring to be closer to 1.5 carats, he shared the same sentiments regarding its shape. “You can’t get more classic than that. It’s the most popular diamond shape,” he told us, adding that it’s a “surprisingly understated” choice for a celebrity bride.