This is what the current system does:





The only difference in materials between these two things is the grade of the clear prism that you use. The difference in priced is entirely caused by the astronomical difference in demand. If they were to take away the grades and leave us the types, this wouldn't be a thing.

I don't know how you suppose someone have so strong an influence on the economy of prisms to make them shoot up to 25k. They are insanely cheap, easy to make, and have a very high demand.

Here are the links to the imgs if they didn't show on top.
https://gyazo.com/c05ea161fcce7e66277672fb996cb1b6
https://gyazo.com/c39ec1e2c97ecc3b10a9b926ef12b483