[buwaya]

Chipping out the rough shapes, marble is easy to carve after all, rubbing the flattish resulting piece against grindstones.
Polishing, cutting into smaller pieces.

[UCANSEE2]

marble is easy to carve after all

Easy ?

grindstones, polishing, cutting into smaller pieces... sounds good as long as you have electricity and power tools.

It's obvious they did it anyway, without those tools, but it still seems amazing to me.