Three years ago Lauren wore the ivory beaded gown to her engagement party with Mark Wright, but has now put the dress up for sale using the Depop app.
And it seems Mark and his new fiance, Michelle Keegan, have been sharing a joke at the star's expense, with the former Corrie star stating that Mark woke her up at 5am 'to show me something hilarious on his phone.'
Michelle continued in her tweet that the hilarious item was 'no surprise,' echoing Mark's comments of last month in which he slammed Lauren for continuing to talk about their past relationship.
Mark Wright called time on his and Lauren's short-lived engagement in September 2011, with the 11-year relationship breaking down for good. Lauren then took up with Jake McClean for two years, whilst Mark Wright went onto become engaged to soap superstar Michelle Keegan.
Speaking of the dress to a UK magazine, Lauren said she 'can't believe' she ever worried about her weight back then, as the gown was only a size 8-10.
And although many may assume that selling the garment is further proof Lauren is not over her ex, the former TOWIE star is adamant that she has nothing but good memories of the relationship.
'It was a good time, it was a good day. I've kind of left all that behind.'
The star added that she thinks other people need to 'get over' their union, as she has fully accepted what happened between them.
'I am happy that he is happy because I always will care for him, but I'm not in love with him and, if he weren't happy, I wouldn't like that,' Lauren confirmed.
Earlier this month the Lauren's Way owner said she has been dating two men in the past few weeks, but is adamant she will not get into a relationship until she is 100% happy with her body.