The couple, parents to two-year-old son Brody, confirmed the surprise news in an Instagram post on Sunday morning and admitted they were keen to marry before the end of the year.
Sharing a photo taken shortly after the service, Georgia, 32, and Tommy, 31, in a joint post wrote: ‘1st December… we done a thing.
‘After a challenging year. We decided we wanted to end the year happy, in love & together as husband & wife/ Wedding part 2 coming soon.’
Georgia also confirmed the second part of their wedding, understood to be a larger ceremony, will take place in Spain.
Happy news: The Only Way Is Essex stars Georgia Kousoulou and Tommy Mallet have announced their marriage – two days after exchanging vows in a private wedding ceremony
Their former TOWIE co-stars flooded their comments with sweet tributes congratulating the newlyweds.
James Argent wrote: ‘Love you both so much, congratulations. I can’t wait to see you Tuesday.’
Amber Dowding commented: ‘Just love everything about this so much. Perfection… bring on part 2… love you all so much!!!!’
Chloe Lewis shared: ‘Beautiful! Can’t wait to be apart of your special day. Love you all’.
Dani Dyer penned: ‘Absolutely stunning. Congratulations you both deserve so much happiness xxxx’
In September Georgia, who became engaged to the trainer entrepreneur last year, recruited several of her former TOWIE co-stars to be bridesmaids at her upcoming wedding.
She asked a host of her girlfriends for dinner and drinks at Sheesh restaurant in Essex.
And it certainly was a busy night for Georgia as she asked TOWIE pals including Chloe Lewis, Lydia Bright, Chloe Ross and Amber Dowding to be by her side on her big day.
In September Georgia, who became engaged to the trainer entrepreneur last year , recruited several of her former TOWIE co-stars to be bridesmaids at her upcoming wedding
She asked a host of her girlfriends for dinner and drinks at Sheesh restaurant in Essex (pictured with bridesmaid Chloe Lewis)
Tommy proposed to Georgia after eight years together on a beach pergola surrounded by roses after they jetted to Mexico for a family getaway in February 2022
The ladies were just one of twelve ladies who will be Georgia’s bridesmaids, with the reality star posing with the whole of her bride squad in a glam snap on Instagram.
Tommy and Georgia postponed the nuptials following a devastating miscarriage earlier this year.
And in August, Tommy revealed that he was planning to tie the knot with fiancée Georgia next year following their tragic miscarriage.
Speaking exclusively to MailOnline, the businessman, who owns successful footwear company Mallet London, discussed his future plans with Georgia.
He said: ‘The wedding is going ahead bigger than ever next year. We pushed back the planning of the wedding after we lost the baby.
‘We were meant to fly to Majorca to plan the wedding and have some alone time but didn’t go because we discovered the miscarriage.
‘But we haven’t cancelled anything. We’re going strong, we’ve got a big day to plan and Georgia needs it as well.
‘I want her to have the same second name and she deserves a really good day now and next year we’re making it happen.’
The reality star has said he has always lived his life with the mentality of ‘what’s meant to be, is meant to be’.
He added: ‘My whole life has been lived with what’s meant to be is meant to be, and I know that’s awful saying that after losing a child but the past four months me and Georgia have been trying to just get through the next day, it’s tough.
‘For me, I’m just so lucky I have Brody, I’ve met people who have lost every single baby that they ever had so I’m just so blessed to have my little boy.
‘Obviously we are going to have more kids, we will do anything in our power to make it happen.’
Tommy proposed to Georgia after eight years together on a beach pergola surrounded by roses after they jetted to Mexico for a family getaway in February 2022.
The reality star had decorated a beach pergola with hundreds of red roses for the grand gesture.
Confirming she had indeed accepted his proposal, Georgia captioned her post: ‘OF COURSE I SAID YES.’
Tommy also shared a snap following his grand proposal with a playful reference to constant questions from fans on when he was planning to pop the question.
Alongside a snap of his beaming bride-to-be, Tommy wrote: ‘Got the job done (now stop asking me when I’m gonna do it).’
In May 2021 Tommy and Georgia revealed they’d welcomed their first child, a baby boy named Brody, gushing that giving birth was ‘greatest experience of [her] life.’
In a second snap uploaded shortly afterwards Georgia cuddled with her little one and wrote in the caption: ‘Thank you for all your messages ❤️ I feel so blessed, the best experience of my life ❤️
‘@tommy_malletI didn’t think I could love you more than I did already .. you are the best x.’
Georgia and Tommy, who have been together since 2014, revealed they were expecting a baby in emotional scenes filmed for the TOWIE Christmas special.