I always have trouble with bevels on top of bevels. To create this rounded dice I first bevelled the vertices of a cube at every corner and adjusted it until I got a rounded cube. I then added a subdivision and cast modifier.
But it still doesn't seem right.
I can't bevel the edges properly unless I harden the normals. If I more segments, I just end up with odd, sharp looking front faces on the dice.
This is my sixth attempt and my best attempt so far. Does anyone have any suggestions how to improve? I'm aiming for the photograph at the bottom. It appears that dice can be quite heavily rounded, but this seems to be moderately rounded.