Amy Adams looked demure in a delicate lavender RM by Roland Mouret silk dress when she attended the premiere of “Night at the Museum 2″ in Washington, DC earlier this year.

I love the detailing which you can expect from any Roland Mouret piece, plus the colour against her porcelain skin and red locks.

This dress made it from the runway to the red carpet in 2 months, and from the runway to Net-A-Porter in a 4 months.

The time it takes for runway pieces to be available to us seems to be getting shorter and shorter.

You can buy this stunning piece from the Net-A-Porter US site for $2,830, or the Net-A-Porter International site for £1,685/€1,733.

Credit: Style.com & Wireimage