Taking to Instagram, Liz confirmed the couple's exciting news - and gave us a flash of the all-important ring!
Sharing a windswept photo of herself and Kelvin by the sea, Liz is pictured proudly showing off her new engagement sparkler as her hubby-to-be smiles wildly.
Captioning her photo, she joked: "So......after a million years together he finally popped the question."
And, unsurprisingly, shortly after posting her exciting snap, Liz and Kelvin were inundated with congratulatory messages!
One fan told the couple they were "so happy" for the pair, while another said: "Congratulations buddy, it's about time x."
Kelvin, on the other hand, is yet to mention his engagement on his own social media accounts.
While the actor may be enjoying a perfect romance in real life, it seems the same can't now be said for Kelvin's Emmerdale character Andy Sudgen.
Last week, Sammy Winward, who plays Katy Addyman - Kelvin's onscreen love interest - announced she would be quitting the soap.
Wanting to try her hand at other projects, Sammy will be leaving Emmerdale after spending the last 13 years playing Katy.
Her character is currently planning to remarry Andy, her childhood sweetheart, but it looks like their romance won't be plain sailing after all now Sammy has decided to move on.
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See other celebs who have announced their engagement this year in the gallery below:
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