The former Sugababes singer announced the news on Instagram, posting a picture of herself showing off her glittering engagement ring while on a romantic tropical holiday with her husband-to-be.
"We're engaged!!" wrote an excited Amelle. "Some spend a lifetime trying to find their other half... Their one true love... Like a jigsaw where you fit together completely and then complete each other's souls.
Amelle and Marcio got engaged while on an exotic getaway
"I've found him and He has found me... The other part of me.. My true love. #SoHappy #TrueLove #MyBestFriend #MyNight #MyDay #MyHeart #MyEverything #ILoveYouMarcio #EuTeAmo".
The 30-year-old singer then uploaded a video of herself and her new fiancé, showing glimpses of her large diamond ring.
Hampshire-born Amelle, who is of Moroccan descent, was then showered with messages of congratulations from her friends and fans.
"CONGRATULATIONS @Amelle_Berrabah," tweeted former TOWIE star Lucy Mecklenburgh, who competed alongside Amelle in Tumble . "Wishing you both a lifetime of love and happiness."