How do I make a crystal glow? I am trying to make the infinity stones and I am struggling to make them glow.

This answers doesn't translate to my issue since the solution involves creating a duplicate of the object scaling down and making it emit light. This ruins the transmission shading of the original object.

In  the films they emit a strong light from their cores. I want to animate them spinning in a circle so the glowing effect must be done in blender. I am currently using an hdr to light them. (using a gtx 960m chip so the less taxing the better).
Make a uv sphere inside the crystal , use emission shader , increase the strength of emission and render using evee.