Costume jewelry. In Lakewood, there's a store called Sparkles where you could find a beautiful ring for that price.
Art project. They have so many gorgeous boxed projects like making a cute pillow that will be lasting and fun to make.
Baking stuff. Does she like to bake? That age is usually a good time to start independent baking. Would she enjoy piping bags and tips just for her? Or a kids cookbook? (I did this one year for my daughter probably at a similar age with a similar budget.)
Cute sweatshirt and slippers for pajamas/sleepovers that's more expensive than generic stuff u might buy.