Timed to coincide with National Lobster Day — September 25 — Pauli's North End is offering a "true Boston proposal experience."

For $10,000, the sandwich shop known for its outrageous promotions and its catchy tag line, “Wicked fresh. Crazy good,” is offering its massive 28-ounce "USS Lobstitution" lobster roll along with a diamond engagement ring.

Pauli's described the center stone as a certified round-cut 1 5/8ths-carat diamond in a diamond halo setting.

On an average day, the USS Lobstitution, which consists of 28-ounces of knuckle and claw lobster meat, dressed with mayo and a twist of lemon on a grilled long sub roll, is listed on Pauli's menu at $99.99. That would put the value of the ring at $9,900.01.

As a special bonus, Pauli's will close down the restaurant so the lobster-loving couple can sponsor a private engagement party at the popular venue on Salem Street in Boston's historic North End. It's just down the block from the Old North Church, where Paul Revere began his famous ride.

“We’ve always had a good time creating these types of promotions," Pauli's owner Paul Barker said in a statement, "and the idea of filling the restaurant with friends and family and popping the question in the most Boston way ever, seems like a fun idea.”

Boston-area suitors must place their diamond engagement lobster roll orders before September 25.

This Wednesday marks the 9th annual National Lobster Day, honoring the hardworking individuals who sustain Maine's iconic lobster fishery. According to a press release, this day invites lobster lovers nationwide to savor the iconic staple at its seasonal best.

For over 150 years, Maine's lobster fishery has been a cornerstone of the state's coastal identity, upheld by generations of families dedicated to their communities and the preservation of this vital resource.

Credits: Screen captures via Instagram / paulisboston.