What has the trend appeal of a pastel color, is edgy and sweet at the same time and has been spotted on celebs like Sienna Miller and Cara Delevingne? Unless you’ve been living under a rock, you know the answer: it’s that glowing, gilded, peach-pink tone that’s suddenly popping up on heads everywhere—Rose Gold. This trend has caught on with clients, and it’s not likely to stop any time soon. Why? Because as we’ve seen, it appeals to all different kinds of clients. It looks great on short hair or long hair, straight or wavy.…