It can be repaired. Depending on the color and how faded it is, the fix may not be noticable. Try calling West Marine at 1 800-262-8464 and speak to someone there. If you have a West Marine in your area, go there and talk to them.
Many years ago, I repaired gelcoat problems for Stamas Boats. If the mold was not waxed well enough, the boat would be damaged when it was pulled from the mold. My job was to fix those dings. They have come a long way with fiberglass since I worked with it. I bet they have a patch kit for sale today. Back when I was doing repairs, I had to mix my own. Was a little tricky and I had to add a drop or two of styreen into my mix or it would never dry so it could be wet sanded. Of course, any fix will have to be buffed out after the fix. Carl