According to yapping celebrity tattles, Nicole Richie is selling the $10,000 Halston’s dress she wore to a 2005 party celebrating her engagement to then-fiance DJ Adam “AM” Goldstein. The eye-catching Size 0 frock, accentuated by a plunging neckline, will go on sale for $3,000 at New York City consignment shop Fisch For The Hip next week.

“Nicole loved this dress. It’s a piece of art and she was so excited to wear it for her engagement party to Adam,” a insider tells In Touch. “It was time for a change, obviously.”