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 now, it seems, she's added ALL of her unwanted clothes to the app, including plenty of her red carpet outfits.
There's a one-sleeved black gown which Lauren describes as "very glam" in a size 12. Or there's a cropped and studded leather jacket with gold studs.
Not to mention all the other clothes she's popped up on the site for sale, much to the delight of her followers.
Judging by a cryptic tweet she posted before uploading all of her clothes for sale, this wardrobe clear out is the beginning of something big for Lauren.
She wrote: "Got sooo much 2 do and so little time!! I can't even think straight right now.. #checklist #confused #excited #terrified"
However one person who seemed unimpressed with Lauren's behaviour - or, at least, mildly amused - is Michelle Keegan, who is engaged to Lauren's ex, Mark Wright.
Shortly after Lauren's engagement dress was popped up on Depop for sale, Michelle revealed that Mark woke her up at 5am 'to show me something hilarious on his phone.'
Michelle continued 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.
However Lauren seems to be seriously unbothered by what anyone else things, happily tweeting: "A negative mind will never give you a positive life."
We guess a good spring clean really DOES put you in a great mood!
Will you be buying any of Lauren Goodger's old clothes? Let us know via the Comments Box below now.