Six grades of gems, rubies in this case. It should be easy to change the hue to create other gem types with an image manipulation program.
Comments
Great... But why the solid background color? Can you reupload the PNG with a transparent background?
If I use some environment mapping, my rendering tool won't give me a transparent background at the same time. But I've uploaded a second version where I manually removed the background. There are some limitations in the processes that I use.
còÓL