Personally, I like the crystal icon without the text. Look at the other icons on your computer, how many of them have text? Probably none, or close to it. An icon is a just that, a picture, not text, that distinguishes on app/file/folder from another. The text is below the icon, not on it.
Oh, and if you don\'t mind, I made a Mac .icns version of the crystal. .png and .ico don\'t work on Macs, the transparency becomes black if you try to set them as an icon. It\'s a little darker shade of blue than your\'s, I think I screwed up the mesh a little. Cut me some slack, it\'s my first icon... and it\'s not even actually \"mine\".
http://www.freewebs.com/drmobius/Crystal.icns