Home and Away stay Pia Miller buys her son Isiah a luxury SUV to celebrate his 18th birthday

Home and Away star Pia Miller shares touching tribute to her son Isaiah on his 18th birthday and reveals she has gifted him a luxury SUV to celebrate the milestone

Pia Miller is one proud mum and she wants the world to know.

On Friday, the Home and Away actress celebrated the 18th birthday of her eldest son, Isaiah Loyola – and she did so by buying him a luxury black SUV.

For his birthday dedication, the 37-year-old star shared two photos of her grown-up son on Instagram.

Lucky boy! On Friday, Home and Away actress Pia Miller (right) celebrated the 18th birthday of her eldest son, Isaiah Loyola (left) and she did so by buying him a luxury black SUV

In one photo, Isaiah, who resembles his mother, is smiling from-ear-to-ear as he poses in front of a big black vehicle. 

Meanwhile, in the second, she treated fans to a throwback image of her son as a little boy, with the same cheeky grin.   

‘EIGHTEEN years of loving you! Happy birthday beautiful,’ the mum began her emotional caption.

Nice ride! Pia shared a photo to Instagram, showing Isaiah smiling from-ear-to-ear as he posed in front of his brand new car

Nice ride! Pia shared a photo to Instagram, showing Isaiah smiling from-ear-to-ear as he posed in front of his brand new car 

‘How grateful we all are to have you in our lives. So incredibly proud of everything you are,’ she added. 

Pia welcomed her firstborn as a teenager with her boyfriend at the time. 

She went on have another son, 13-year-old Lennox, who she shares with ex-husband Brad Miller. 

Adorable throwback! Pia also treated fans to a throwback image of her son as a little boy. So proud: 'EIGHTEEN years of loving you! Happy birthday beautiful. How grateful we all are to have you in our lives. So incredibly proud of everything you are,' Pia wrote in her caption

Adorable throwback! Pia also treated fans to a throwback image of her son as a little boy. So proud: ‘EIGHTEEN years of loving you! Happy birthday beautiful. How grateful we all are to have you in our lives. So incredibly proud of everything you are,’ Pia wrote in her caption

In February she shared the first photo of her boys with he  fiancé, Patrick Whitesell, alongside the caption: ‘Happiest.’  

Pia announced the couple’s engagement on November 28, after more than a year of dating. 

The multi-millionaire Hollywood agent jetted into Australia from Los Angeles last month to be by Pia’s side and has settled well into her family. 

Family: In February she shared the first photo of her boys with her multimillionaire fiancé, Patrick Whitesell (centre), alongside the caption: 'Happiest'

 Family: In February she shared the first photo of her boys with her multimillionaire fiancé, Patrick Whitesell (centre), alongside the caption: ‘Happiest’