Glass with diffraction in Blender cycles by J4RV on DeviantArt
How to implement the different IOR for each metal, for a slightly more nuanced appearance than just the Principled BSDF will offer? It would be a welcomed factor from reality and not
Glass BSDF — Blender Manual
Howto use the Light Path Node to make Realistic Glass in Blender - 2.73 beta - YouTube
Playing around with dispersion lately using RGB channels and IOR refraction : r/blender