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Pricing information

$10,000 starting price
$1,000 starting price
Bar service
$30 per person
$10,000 starting price
$500 starting price
Bar service
$30 per person
These prices are available for the months of May through October. These prices are available for the months of November through April.

Attributes highlighted by couples

Unique aesthetic style
Quality catering
Guests comfort


On WeddingWire since 2012

Diamond’s Edge Restaurant and Marina is a waterfront wedding venue located in Portland, Maine. This captivating venue overlooks the pristine water of Diamond Cove and was once the historical site of Fort McKinley. Surrounded by views of lush trees, peaceful waters, and rolling fields, this setting is the ideal choice for couples looking to wed in an idyllic getaway. We are open for events end of May to beginning of October.

Facilities and Capacity

Diamond’s Edge Restaurant offers couples the use of a number of venues that show off all that Maine has to offer. The ocean view lawn is the picture-perfect place to say your vows as well as enjoy dinner and dancing with up to 250 of your beloved friends and family. The custom Sperry Tent with its retractable sides and dance floor is available for outdoor celebrations, no matter the weather. For couples desiring an intimate ceremony or reception, the Art Gallery can accommodate up to 70 guests and boasts a 40-foot vaulted ceiling with sliding barn doors for a rustic look. Enjoy music and dancing before cruising back to Portland on your very own love boat or spend a romantic wedding night nearby at the luxurious Inn at Diamond Cove.

Services Offered
Diamond’s Edge Restaurant and Marina is a full-service wedding venue with food and boats at your service. This unique waterfront venue is willing to serve the happy couple in any way they can on their wedding day. Some services they include to do this are:

  • Wedding specialist
  • On-site catering
  • Coffee service
  • Bar service
  • Champagne toast
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Frequently asked questions

Do you have a site fee for wedding receptions at your venue?


What is the starting site fee for wedding receptions during peak season?


What is the starting site fee for wedding receptions during off-peak season?


Do you have a site fee for wedding ceremonies at your venue?


What is the starting site fee for wedding ceremonies during peak season?


What is the starting site fee for wedding ceremonies during off-peak season?


Which of the following are included in starting site fee?

Clean Up
Set Up

Which of the following are included in the cost of wedding catering?

Cake Cutting

What is the starting price per person for bar service?


Which of the following are included in the starting price for bar service?

House Wine
Open Bar

How many event spaces or rooms does your venue offer?


Describe your venue:

Art Gallery
Historic Building

What kind of settings are available?

Covered Outdoor
Uncovered Outdoor

Which of the following wedding events does your venue service?

Bridal Shower
Engagement Party
Rehearsal Dinner

What event services do you offer?

Event Planner
Get Ready Rooms

What catering services do you offer?

Cocktail Reception
Family Style
Hors d'oeuvres

What bar services do you provide?

House Liquor
Open Bar

What event items are available?

Dance Floor

What food and beverage items are available?


What months are included in your peak season?

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4.9 out of 5 rating
7 Reviews
  • Quality of service
    5 out of 5 rating
  • Average response time
    4.8 out of 5 rating
  • Professionalism
    5 out of 5 rating
  • Value
    4.9 out of 5 rating
  • Flexibility
    5 out of 5 rating
99% Recommended by couples

7 User photos

7 Reviews
Andrew P. Sent on 10/13/2023
5 out of 5 rating

Hidden gem in Casco Bay

My partner Andrew and I were married at Diamond’s Edge Restaurant & Marina in September of 2023 on what was one of the best days of our lives. Planning for the event began roughly a year earlier when, after returning to Maine to raise a family, we sought a wedding venue that would highlight the treasured coastal natural beauty while still being close to Portland. We came to find out that Diamond’s Edge Restaurant was the diamond in the rough we sought.

Stepping off a classic Casco Bay Ferry onto the dock, you are immediately transported away from the hustle and bustle of everyday life into an iconic scene of Coastal Maine tranquility (and away from cell service!) No cars are allowed on the island, resulting in a truly relaxed island experience. History buffs also have the chance to explore historic Fort McKinley - a highlight we didn’t appreciate until after the fact. Whether your guests stay at the Inn at Diamond Cove, a vacation rental, or visit for the day, it will surely be an experience they won’t forget.

The venue itself was remarkable on every front. The scene of a tent reflecting on the ice pond is stunning, only exceeded by the view our guests were treated to with the cove in the background during the ceremony The culinary experience was exceptional, and it was an absolute treat getting to choose from their diverse and rich options for appetizers, entrées, and drinks. But what sealed the deal was the amazing staff of the restaurant, marina, and inn. Their willingness to go the extra mile, find solutions, and focus on the details was so assuring, only exceeded by their commitment to Andrew & I savoring every moment on our wedding day. Thank you, Colleen, Erik, Trent, Crystal, and your whole team!
Rebecca M. Sent on 11/06/2022
5 out of 5 rating

Perfect spot for a wedding

I got married in September on Diamond Cove and it was an amazing day! Colleen the coordinator was helpful day of as well as the months leading up to it. The location is absolutely spectacular, truly couldn't be more beautiful. The food was delicious, too! Highly recommend.
Brycelyn W. Sent on 11/03/2022
5 out of 5 rating

Quintessential Maine Wedding

We had an amazing wedding experience and it would not have been possible without our amazing venue! The staff goes above and beyond as soon as you book with them, and our family is still raving about how kind and accommodating they were during our wedding weekend. It was so convenient to have our ceremony space and reception area next to each other, and our getting ready rooms just a short golf cart ride away. We hosted our rehearsal dinner with them, and the food was top notch for that and for our wedding reception. Having a built in day-of coordinator through the venue was so great, and kept everything running smoothly with vendor coordination and timeline. Not to mention, the backdrop for pictures cannot be beat with the ocean at your feet. I grew up coming to Great Diamond Island during the summers, and I have a whole new appreciation for it now. The island is absolutely magical. I highly recommend booking with them, you will not regret it.
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Professional Network & Endorsements

1 Endorsement
Wavelength Wavelength Wedding Bands

We couldn't have asked for a better experience working with the friendly wedding coordinators and staff at Diamond's Edge Restaurant and Marina this summer. Leading up to wedding day, Rachel was extremely helpful with many logistical questions and on the day of, was just as amazing. The view is gorgeous and the transportation to the island was seamless. It was a wonderful experience to play on the island and we look forward to going back. We highly recommend a Great Diamond Island wedding!


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