"Mama, Stella and Papi," Griffith wrote with a photo of her daughter and the Puss and Boots actor. "Our angel is amazing. Beginning the next chapter of her life! Freedom!!"
Griffith captured lots of moments from the family celebration and had no problem posting pics of her ex to her Instagram.
"Father and daughter celebrating at Bacclaureate luncheon!" she captioned a pic of Stella with her dad. "So sweet!!"
Another photo of Griffith and her daughter showed that the actress still has a band-aid over her tattoo where Banderas' first name used to be before she started erasing it. "Stella and Mama at Graduation luncheon #proudmama," she wrote.
Fifty Shades of Grey star Dakota Johnson, Griffith's daughter with ex Don Johnson, was also around for the festivities. "Me and my fabulous kids! Stella, Alexander, and Dakota," the proud mom wrote. "My joy, my heart, my life is theirs."