How to do High Quality Crystal Lamp Effect?

[volcano]

this is what I have done with meshtranmissionmaterial.
I want to simulate high quality lamp effect like original image.
Do you have any similar examples or solutions?

[PavelBoytchev]

Maybe adding some subsurface scattering?

https://threejs.org/examples/#webgl_materials_subsurface_scattering

Or some nested objects to act like internal structure like the left solid here:

https://boytchev.github.io/texture-generator/examples/bump-map.html