The couple shared their nuptials with family and friends at George Lucas' Sky-walker Rance in California and it was the perfect day.
Green, 36, began dating Grant in 2008.
He got down on bended knee last New Years Eve and asked Grant to spend the rest of her life with him. She accepted.
Both bride and groom looked amazing, according to reports from inside the wedding reception.
Tarina Tarantino, famous jewelry designer, worked with 30-year-old Grant to create a stunning bridal hairpiece. Tarantino also created the bridesmaid gifts.
35-year old Tarantino’s past clients include Cameron Diaz, Avril Levigne and even Miley Cyrus. Her handbags were also seen on America’s Next Top Model
Green’s pal ‘Weird Al’ Yankovic congratulated the newlyweds with a post on Twitter: “Just watched my buddy Seth Green get married. Beautiful wedding. Much love to him and his lovely bride Clare.”