Rather than a rombus - and if you would like - try looking at your volumetric light settings for that depth effect - or even putting a slight transparency mat combined with a reflection mat to turn it into a metal/glass object.
Thanks for the feedback! I'm still very noobish as to materials and lighting effects as well. I actually watched a tutorial for the light saber, I didn't intend to make an entire scene out of it, but when I seen the final product of the saber, I couldn't resist :P. Where can I find the "Volumetric Light Settings" ? I know that's probably a noob question lol. Thanks for the link as well, I'm sure I will use it for sure. Happy Rendering! Johnny.