Teresa Giudice is a doting mom as she celebrates oldest daughter Gia’s 20th birthday in New Jersey

Teresa Giudice’s four daughters have grown up before our very eyes.

And the Real Housewives of New Jersey star recently shared another milestone with her 2million Instagram followers.

She was a doting mom Saturday as she celebrated her oldest daughter Gia’s 20th birthday with a night out at Di Palma Brothers in New Jersey.

Happy birthday! Teresa Giudice was a doting mom Saturday, as she took to Instagram after celebrating her oldest daughter Gia’s 20th birthday with a night out at Di Palma Brothers in New Jersey

The 48-year-old posed with Gia and a beautiful floral birthday cake, writing: ‘Happy Birthday Beautiful @_giagiudice hope you enjoyed your birthday love you endlessly #20thbirthday’

She posted a video to her Instagram Story of their intimate party serenading the birthday girl with ‘Happy Birthday.’

Teresa also shared a photo of Gia posing with some giant silver and purple mylar balloons that spelled ’20’ and ‘Gia.’ 

She took a trip down memory lane on Instagram with a photo of them in matching cheetah bikinis when Gia was just a child.

Birthday girl: The 48-year-old posed with Gia and a beautiful floral birthday cake, writing: 'Happy Birthday Beautiful @_giagiudice hope you enjoyed your birthday love you endlessly #20thbirthday'

Birthday girl: The 48-year-old posed with Gia and a beautiful floral birthday cake, writing: ‘Happy Birthday Beautiful @_giagiudice hope you enjoyed your birthday love you endlessly #20thbirthday’

Intimate party: She posted a video to her Instagram Story of their intimate party

Make a wish: They serenaded the birthday girl with 'Happy Birthday'

Make a wish: She posted a video to her Instagram Story of their intimate party serenading the birthday girl with ‘Happy Birthday’

Mama's girl: She took a trip down memory lane on Instagram with a photo of them in matching cheetah bikinis when Gia was just a child

Mama’s girl: She took a trip down memory lane on Instagram with a photo of them in matching cheetah bikinis when Gia was just a child

Proud mom: The restaurateur put together a slideshow of her baby girl through the years, paying tribute in the caption

Proud mom: The restaurateur put together a slideshow of her baby girl through the years, paying tribute in the caption

The restaurateur put together a slideshow of her baby girl through the years, paying tribute in the caption: ‘@gia_giudice I can’t believe my baby is 20 years old today! You are strong and you are fierce and you make everything wrong in the world right. 

‘I love you more than you’ll ever know & I admire your strength and beauty. I love you baby girl and I hope this is the best birthday yet!! Thank you for always being such a wonderful role model for your sisters I’m so proud of you!!’

She shares daughters Gia, 20, Gabriella, 17, Milania, 16, and Audriana, 12, with ex-husband Joe Giudice, 48, to whom she was married from 1999 to 2019.

Happy family: She shares daughters Gia, 20, Gabriella, 17, Milania, 16, and Audriana, 12, with ex-husband Joe Giudice, 48, to whom she was married from 1999 to 2019

Happy family: She shares daughters Gia, 20, Gabriella, 17, Milania, 16, and Audriana, 12, with ex-husband Joe Giudice, 48, to whom she was married from 1999 to 2019

Family man: Joe also took to Instagram with some cute throwbacks and a sweet tribute for his baby girl

Family man: Joe also took to Instagram with some cute throwbacks and a sweet tribute for his baby girl

Growing up: He wrote: 'Happy birthday to my beautiful princess, GIA! From my little girl who used to play with dolls, you have grown up to become a strong and independent woman, that I am proud of'

Growing up: He wrote: ‘Happy birthday to my beautiful princess, GIA! From my little girl who used to play with dolls, you have grown up to become a strong and independent woman, that I am proud of’

Joe also took to Instagram with some cute throwbacks and a sweet tribute for his baby girl, writing: ‘Happy birthday to my beautiful princess, GIA! From my little girl who used to play with dolls, you have grown up to become a strong and independent woman, that I am proud of. Your accomplishments make me smile and pride of you.

‘I love you baby girl, more than words could ever describe. Thank you for being you and for being so special. I want you to always know you are the best big sister, daughter, and friend to many. I thank you everyday for being an understanding and supporting daughter. You are not just my daughter, but my best friend too. [Fire emoji] it up it’s your day!’

Teresa has recently been getting serious with boyfriend Luis “Louie” Ruelas, 46, who spent the holidays with her family.

New flame: Teresa has recently been getting serious with boyfriend Luis "Louie" Ruelas, 46, who spent the holidays with her family

New flame: Teresa has recently been getting serious with boyfriend Luis “Louie” Ruelas, 46, who spent the holidays with her family