Custom skating dresses start at $400 and can go up quickly from there, depending on the design details and the number of rhinestones added to the costume after it's constructed. Many of my customers will save some labor costs by applying their own rhinestones or I can arrange to work with the customer to decorate the costume together.
I don't mass produce skate costumes. I don't repeat designs. I will not compete, pricewise, with companies who use the same design again and again, only in different colors. That's not who I am. I usually will not sew for skaters who cannot come in for at least one fitting in person.
Boys'/Men's costumes also start at about $400. Occasionally, something very simple will cost less.