The reality star shared several photos from the soccer-themed soiree on Twitter, writing, "My birthday girl Gabriella can't believe she is 9 already."
Though Giudice and her husband Joe face the possibility of 50 years behind bars for multiple counts of fraud, the family looked picture perfect on Gabriella's big day.
Also in attendance was Giudice's sister-in-law and fellow RHONJ cast member, Melissa Gorga.
"Happy birthday to my beautiful godchild Gabriella!" Gorga wrote on Twitter, sharing a photo with the birthday girl and her soccer ball-topped cake.
During a recent appearance on Watch Watch Happens Live, Giudice told host Andy Cohen that her four daughters are her primary focus as she and Joe face the 39-count indictment.
"I can't fall apart," she said. "I have my daughters. They mean the world to me."
The next court date is Oct. 8.
Love this photo of Gabriella, looking at her smile makes me smile. pic.twitter.com/bA1DnOMeuE— Teresa Giudice (@Teresa_Giudice) October 5, 2013