Teresa Giudice's daughter Gia flips her mom the bird during 18th birthday party ... which included a three-tiered bejeweled cake

Teresa Giudice, 46, celebrated her oldest daughter Gia's 18th birthday Tuesday with a pizza party and blinged out cake.

During the party Gia made a bold, grown-up move by giving her mom the middle finger while she tried to wish her a happy birthday in a social media video. 

The Real Housewives of New Jersey star shared the disrespectful moment in a video from the intimate gathering at her Garden State home.

Celebrate: Teresa Giudice's oldest daughter just turned 18 and celebrated with a party at home; During the soiree, the now-adult Gia flipped her mom the bird in a video Teresa shared on social media Tuesday

Celebrate: Teresa Giudice's oldest daughter just turned 18 and celebrated with a party at home; During the soiree, the now-adult Gia flipped her mom the bird in a video Teresa shared on social media Tuesday

Despite the absence of husband Joe Giudice, the group seemed to have no problem celebrating the milestone.

'Happy birthday Gia! Hi girls,' Teresa could be heard saying behind the camera as she panned around her lavish kitchen. 

'Gia don't tell them not to look at me,' she scolded the birthday girl who wasn't in the mood to be filmed.

The 18-year-old then swiftly flipped her mom the bird, smiling when the camera came to her.

Bold move: Not wanting to be filmed, Gia flashed her mom the middle finger as she smiled and ate pizza

Bold move: Not wanting to be filmed, Gia flashed her mom the middle finger as she smiled and ate pizza

For her part, the Bravo star laughed off her daughters rudeness and kept on filming. 

'Hi Gia, I love you,' she said in the next video.

'I love you too,' her daughter mumbled through a mouthful of pizza.

Gia's party appeared to be just family like her Uncle Joe Gorga and his wife, RHONJ star Melissa Gorga, as well as a gaggle of her high school aged friends.

Not bothered: For her part, the Bravo star laughed off her daughter's rudeness and said 'I love you.'

Not bothered: For her part, the Bravo star laughed off her daughter's rudeness and said 'I love you.'

Keeping it close: Only family and close friends attended the birthday bash
Bling! The birthday girl got a lavish three-tiered sparkling chocolate cake

Keeping it close: Only family and close friends attended the birthday bash

Teresa tapped local spot Palermo's Bakery to create an ornate three-tiered chocolate cake.

The fondant covered confection was pearly white and lavender with frosting stars and an entire layer of blinged out silver edible rhinestones. 

After around or two of Happy Birthday, the group of teens made short work of the cake, leaving a sugary carcass in it's wake. 

Missing: Father Joe Giudice was absent from the event as he serves out a prison sentence for fraud; Teresa previously served a similar sentence

Missing: Father Joe Giudice was absent from the event as he serves out a prison sentence for fraud; Teresa previously served a similar sentence

Earlier, Teresa shared a montage of vintage family photos showing Gia throughout her life. 

'The day I became your mom was the day I found purpose in my life,' Teresa wrote in a lengthy caption. 'Gia, you are such a sweet, gentle loving smart person and I'm so fortunate to be chosen as your mother. 

'Thank you for being such an amazing big sister, cousin, niece, friend & all the other roles you play, I don't know what I'd do without you. You'll never understand how much I love you & how grateful I am.

'I'm so proud & excited to see where your future takes you! Happy Birthday my gorgeous girl!! 18 - I can't believe it!!!'

The girls: Teresa posed with the birthday girl and her three younger daughters

The girls: Teresa posed with the birthday girl and her three younger daughters

Her firstborn: Teresa Giudice celebrated 'amazing' daughter Gia's 18th birthday as she shared montage of her childhood to Instagram

Her firstborn: Teresa Giudice celebrated 'amazing' daughter Gia's 18th birthday as she shared montage of her childhood to Instagram

She tagged her post: '#birthdaygirl #18 #happybirthday #luckymom @_giagiudice.'

While Gia has always been close to her mother, she has proved the Real Housewives Of New Jersey star's biggest support during the last few trying years.

As the oldest child, it has fallen to Gia to help her parents hold their family together as first Teresa, and now patriarch Joe, were jailed for fraud. 

She has also supported Teresa as she has grappled with the ruling that Joe must be deported to his native Italy after he serves his 41-month sentence

As she was: Teresa and a young Gia back in  2009

As she was: Teresa and a young Gia back in  2009

Advertisement

Teresa Giudice's daughter Gia flips her mom the bird during her 18th birthday party

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

We are no longer accepting comments on this article.