Anything you want to add for the home to bring more natural accents with artistic and unique design, you will need more efforts to build those accents. Stone interior walls design can be the good idea to build the accents for the home to be more natural and comfortable. Here, you can use natural stone with natural size and shape but it needs more efforts and technique to arrange or you use engineered stone where the shape is thinner and flat so you can easily arrange them.
Both of those stacked stone for interior walls can be a good idea depending on the home interior you want to build. If you consider about modern home with minimalist elements, the engineered stone can be much better although it has more expensive price. And if you want to build it for your country counterpace or with traditional look, original stone can be much better.
Both of them have different design and accent to display with different methods for installing. The engineered stone may be easier because it has flat surface while the original stone has round and with unstructured surface. Any of the ideas you go with, stone interior walls design is really beautiful and incredible and has more huge accents of the wall display.