Explanatory notes
… of the layers), bruted, tumbled or which have only a small number of polished facets (e.g., so-called windows, which … plane of the layers), bruted or which have only a small number of polished facets (e.g., so-called windows, which … does not cover : (a) Diamonds which have only a small number of polished facets (e.g., windows which are made to …