The real difference between a well-made glass cabinet and a cheap one is not visible on the outside. It is on the inside.
In an ordinary cupboard, the interior is a working surface: the back is a plain board, the underside of the top is left as it comes, shelf edges are square and unfinished, and the inside faces of the doors are given a coat and forgotten. Nobody sees any of it, so nobody spends time on it.
Glaze the doors and every one of those surfaces is now on display. A back board with a visible joint, a rough underside to the top, an unpolished shelf edge - all of it sits behind the glass in plain view, and no amount of carving on the outside distracts from it.
So our master Indian artisans finish the inside to the same standard as the outside. The back is made and finished as a show surface. The underside of the top is worked and polished. Shelf edges are eased and polished, not left as cut. The inside faces of the doors get the full finishing sequence.
It roughly doubles the finishing work on a cabinet like this, and it is invisible in a photograph. It is the difference you notice every day for thirty years, standing in front of it.