It looks like I was wrong as Charlotte Casiraghi was actually the first person to wear a look from the Giambattista Valli Fall 2011 Couture collection.

The Princess wore her blue strapless bustier gown and cape whilst attending the official dinner and firework celebrations after the religious ceremony for the Royal Wedding of Prince Albert II of Monaco and Princess Charlene of Monaco last month.

Her gown was accented with a jeweled belt which we didn’t see on the runway when the show was presented a few days after the wedding ceremony.

SJP wore the same dress in red tonight on the red carpet for the “I Don’t Know How She Does It” Moscow Film Presentation with simple gold Fred Leighton jewels.

I want to give this to SJP as she showcased this gown so perfectly tonight, but I love the addition of the jeweled belt and the soft blue colour so Charlotte wins for me.

If you can’t make up your mind, click on the image above to see more pictures of these ladies in their Giambattista Valli Couture gown.

Credit: Style.com & Getty