"Look what my wife did for our wedding anniversary. Six!" the talk show host, 56, captioned a makeup free photo of herself and de Rossi grinning from ear to ear with the word "six" written in the sky above them.
Prior to their anniversary, the duo enjoyed a little R&R yachting off the coast of the Croatian island of Hvar last month.
The happy couple, who wed in August 2008, are used to treating one another to surprises. Last Christmas, DeGeneres surprised the Ally McBeal alum with a truck!
In a hilarious video shared on her talk show, DeGeneres documented when she surprised her love with the new car, explaining: "There's a car called the [Land Rover] Defender, and every time she sees one, she says 'I love that truck, they're so cool.'" The Oscar host then went on to explain how she strategically placed the car with a bow on it in a parking lot for de Rossi to find and freak out over.