The present invention relates to a kit for visualising a cutting regime of a rough diamond comprising: (a) a solid, translucent substance into which three dimensional images are marked, said markings indicating: (i) the outer surface of the original rough diamond, (ii) optionally, the internal defects of the rough diamond, said markings indicating the position and shape of said defects with respect of the rough diamond,(iii) optionally, the outer surface of one or more cut diamonds, said markings indicating the position and shape of said cut diamonds with respect of the rough diamond, and (b) solid, physical representations of one or more diamonds indicated by the markings of item (iii), and/or solid, physical representation of the rough diamond, corresponding to the markings of item (i), and/or one or more actual cut diamonds indicated by the markings of item (iii). The present invention further relates to a computer readable medium comprising data regarding the cut stone and the original rough diamond.
