Here i used three basetext-layers, each one shrinked a bit.
There is one big bevel, with the highlight slightly blueish and three bevels on top of it. Each one tightened with an alpha-curve.
If you want to study the effect, here is the .xcf-file:
If you duplicate the layer and apply 'G'MIC Relief Light' set to 'Value' Mode, you get this:
And even more filtering :)
In these two variations, the light comes from the side, with shadow and highlight the same colour, merged down and on normal mode. Then all modified with alpha-curves.