A few years ago, back when Nicole was with Adam Goldstein, she wore a vintage Halston dress to their engagement party. She’s been holding on to it since 2006, but is now selling it. In Touch reports this week that they have exclusively learned that the gorgeous gold gown is up for sale.

The magazine reports that it is worth more than $10,000 and it is being sold at the chic consignment store Fisch for The Hip in New York. At size 0, it may not fit the average shopper, but it’s being sold for the relatively bargain price of $3,000, the magazine reports.

“Nicole loved this dress. It’s a piece of art and she was so excited to wear it for her engagement party to Adam,” an insider tells the magazine, pointing out that because Nicole is now with Joel Madden, father of her baby daughter, Harlow, “It was time for a change, obviously.”