Create a Diamond Shader or Fake Shader for Money

Are you sure you want to pay for this? Honestly, I don’t find this example very impressive. I can’t even distinguish the faces. May be you should try your luck with twisting the existing base of a node material, like this one:

Else, you could try work it from the base of @andyray GLSL editor

Using any of the above as a starter, I believe it would take only little efforts to change it to your liking.
Of course, my opinion only and meanwhile, have a great day :sunglasses:

Edit: Quickly searching the forum, I found this tutorial serie from @roland to create a diamond shader.
Some links appear to be broken, but even the first one looks pretty convincing to me. Another base you could use as a starter I believe :smiley: