How to repair a tiny crack on screen?

I have a Galaxy s3 and I've been trying to trade it for an Iphone 5, the problem is no one will trade because of a tiny "u" shaped crack on the side. It's so small it doesn't even touch the the screen itself or even come close to it. Is there anything I can do to make it look better or preferably not visible?

Uhh replace the screen? You can find it on ebay