The images are just photos from the web, but I'm trying to create the material with Vray for Sketchup.

I am creating an animation for a space that used dichroic glass, but I can't seem to create anything that even remotely looks or behaves convincingly (at the moment I'm stuck with applying a pastel gradient on some glass). Does anyone have any ideas for creating a material that would look something like this?:

Any help would be greatly appreciated!