Jonnie Irwin pays emotional tribute to wife Jess as pair celebrate major milestone: 'Angel!'

Irwin has been battling terminal cancer for the past three years but went public with the diagnosis just last year when the illness spread to his brain.

But he's proved he's not letting his diagnosis stand in the way of celebrating the major milestones in his life - even returning to screens last week in a highly-viewed episode of the BBC's Escape to the Country.

Irwin and his wife - who share three young boys named Rex, Rafa and Cormac - headed out without their children to mark their seven-year anniversary.

Sharing a snap of the two of them on Instagram, Irwin began his tribute as he captioned the post: "7 years married to this Angel.

"I use this term because the love she shows to others is beyond comparison," he said.

Irwin continued: "Last night was just us; chatting, planning and gossiping. So good.

"Amazing food and staff at @lovagejesmond made our evening perfect. #anniversary," he signed off.

Inevitably, it didn't take long for fans to share their congratulatory messages as they praised the adorable update - including some of Irwin's on-screen colleagues.

Fellow Escape to the Country star Nikki Chapman took to the comments section to share a handful of heart emojis.

A Place in the Sun's Jasmine Harman also remarked: "Gosh 7 years! I remember your wedding day like yesterday! Lots of love to you both and Happy Anniversary."

And Amanda Lamb concurred: "Happiest of days to you both you gorgeous pair," followed by a series of love heart emojis.

While one of Irwin's followers weighed in: "Happy Anniversary to such a beautiful couple. Jonnie you look great."

WATCH NOW: Jonnie Irwin's home renovation 

Elsewhere, a second echoed: "Happy anniversary to you both and your looking very well Jonnie keep doing what your doing x."

And a third added to the replies: "You make a lovely couple, so glad you found each other. Happy Anniversary and wishing you all the very best.

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Irwin's resilience as he continues to live with cancer has been praised throughout his journey as the TV presenter regularly shares updates from his life at home.

He's even been branded an "inspiration" for tackling a major home renovation at his family's house in Newcastle as he spends more time with his young ones and wife.

However, this past weekend, Irwin revealed the work hit a snag due to the adverse weather wreaking havoc.

He penned: "It seems like every time we do any roof related work it smashed down with rain!

"Jess is underneath with buckets and I’m trying in vain to seal from above. Oh the joys of renovating," he shared alongside a snap of him trying to remedy the mishaps the weather had prompted.