A gemstone. in 8 colors. 2 sizes (100% and 50% scale).
White, red, blue, green, yellow, purple, orange, black.
It is refractive (only in-game, hammer can't cope with it) and has 2 lods, the lowest being 30 tris (lod0 is 190)
As requested by http://forums.tf2maps.net/showthread.php?t=9185 (nevermind that its almost 3 years too late).