About this venue
Colleen O'Connell
EVENT MANAGER
Typically responds within 24h
About
Diamond’s Edge Restaurant & Marina is a waterfront wedding venue located on Great Diamond Island in Portland, Maine. Set within historic Fort McKinley and surrounded by sweeping water views, lush forests, and quiet island charm, this coastal destination offers couples a one-of-a-kind setting for their celebration. Accessible by a short ferry ride from Portland, it feels like a private retreat—perfect for couples dreaming of a scenic and serene Maine wedding. The venue is open for events from late May through early October.
Unique Wedding Weekend Experience
What makes Diamond’s Edge truly special is the ability to turn your celebration into a full wedding weekend getaway. With an exclusive buyout of the nearby Inn at Diamond Cove, you and your guests can stay on the island together and enjoy it as your own private escape. Spend the weekend exploring the historic grounds, relaxing by the pool, kayaking in Diamond Cove, hosting welcome parties, rehearsal dinners, farewell brunches, and more. It’s a destination wedding—without leaving Maine.
Facilities & Capacity
Diamond’s Edge offers several beautiful spaces to suit celebrations of all sizes:
Oceanview Lawn: A stunning waterfront location perfect for ceremonies and outdoor receptions, accommodating up to 250 guests.
Custom Sperry Tent: Featuring retractable sides and a built-in dance floor, this tent allows for an elegant outdoor event in any weather.
Art Gallery: Ideal for intimate weddings and gatherings of up to 70 guests, with 40-foot vaulted ceilings and sliding barn doors that bring rustic charm to your celebration.
Couples may also choose to end the night with a private boat cruise back to Portland or stay steps away at the Inn at Diamond Cove.
Services Offered
Diamond’s Edge Restaurant & Marina is a full-service wedding venue providing:
Dedicated wedding specialist
On-site catering with coastal-inspired menus
Full bar service
Champagne toast
Coffee and dessert service
Stay on Island at the Inn at Diamond Cove
Just steps from Diamond’s Edge, the Inn at Diamond Cove allows couples to turn their wedding into a full island getaway. Choose a full Inn buyout for exclusive access all weekend long, or reserve a select number of guest rooms for those wishing to stay on island. With amenities including a pool, beaches, kayaking, tennis courts, and historic walking paths, couples and guests can relax, reconnect, and celebrate together in a truly unforgettable setting. It’s a destination wedding experience—without leaving Maine.
Meet the team
Colleen O'Connell
Event Manager
With almost a decade of experience in the events industry and 5 years spent planning weddings on our island, I’m passionate about turning love stories into beautifully seamless celebrations. I adore working closely with couples, getting to know their vision, and making the planning process as joyful and stress-free as possible. I love love — and I’m so honored to celebrate it every day
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Diamond's Edge Wedding & Events
Colleen O'Connell
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Event Manager
Typically responds within 24h
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