Well, the dress has been found ... to be a fake!
The thief who took the gown says he took the dress from Lupita's room at The London after finding the door ajar.
[Image via WENN.]
Aw, this is just like the time they matched at the royal wedding!
The coat was months in the making and featured delicate satin blush pink trim that matched Pippa's suede Emmy pumps.
The designer spoke of the planning that went into the outfit, saying:
"We aimed for understated beauty, drawing inspiration from a 1960s coat dress that I bought in LA, among other vintage looks and archive pieces. The outfit had to be both beautiful and appropriate from the length of the hem, to the style of the millinery and the subtle colour and cut."
Like the Duchess, Pippa also had a floral headpiece atop her chestnut brown locks, but hers was courtesy of milliner Edwina Ibbotson.
[Image via WPA Pool/Getty Images.]