Cindy Crawford and Rande Gerber wish daughter Kaia a happy 19th birthday

Model Kaia Gerber turned 19-years-old on Thursday.

Her doting parents, supermodel Cindy Crawford and business mogul Rande Gerber, each took to social media with sweet tributes to their 'not so little' girl. 

Kaia, meanwhile, is rumored to be beginning a budding romance with 23-year-old Australian actor Jacob Elordi. 

Celebration! Model Kaia Gerber turned 19-years-old on Thursday and her doting parents, Cindy Crawford and Rande Gerber, each took to social media with sweet tributes to their 'not so little' girl

Celebration! Model Kaia Gerber turned 19-years-old on Thursday and her doting parents, Cindy Crawford and Rande Gerber, each took to social media with sweet tributes to their 'not so little' girl

Cindy gushed in a sweet Instagram post: 'Happy birthday to my not so little princess! Wishing you health and happiness and the confidence to be the highest version of yourself.'

'So proud of the woman you are becoming,' she penned in the caption.

The affectionate post included two throwback photos of a young Kaia - already looking like a little model.

The first sees the the future catwalker all smiles at one of her birthday parties, dressed in a pink princess down and a gold crown, from when she looked to be around four or five years old.

Too cute! Cindy shared an adorable photo of Kaia dressed in a pink princess down and a gold crown from when she looked to be around four or five years old

Too cute! Cindy shared an adorable photo of Kaia dressed in a pink princess down and a gold crown from when she looked to be around four or five years old

In her Instagram Story, Cindy posted an even younger birthday photo of Kaia - possibly her first - wearing a fuzzy pink party hat.

Cindy, who looks like she's barely aged a bit, smiled sweetly next to her baby in the vintage party shot.

Rande, meanwhile, shared a snap of his only daughter from when she was 14. The photogenic smiled brightly at the camera, makeup free, in a black bikini top.

'Happy Birthday my little angel. I thought I was in trouble when I took this 5 years ago but your on the inside has proven to be even bigger than your smile. I love you forever,' he wrote in the caption. 

'Happy Birthday my little angel. I thought I was in trouble when I took this 5 years ago but your beauty on the inside has proven to be even bigger than your smile. I love you forever,' dad Rande Gerber gushed in his post

'Happy Birthday my little angel. I thought I was in trouble when I

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