Something like this might be a good solution for you http://inhabitat.com/kichlers-new-led-tape-light-fits-just-about-everywhere/

Depends on the shape, location, type of stone, how you plan to hang it, and what else is going on in the room. Can you post pics?

Dear Shubham, I am Ravi Prakash and I am an Architect. A lot of information required to start with any project, like context, site, plot, budget, timelines and many more. It appears like you had not consult a professional assistance for your hotel as I don't see anything interesting in this building. Its just a boring box with lot of windows. Hotels are hospitality buildings where service and comfort to the guests/visitors is the prime concern. It has to be a beautiful building with rich, healthy and welcoming environment. If you are looking for professional consultancy you can share your contact here or can contact me. Thanks and Regards Ar. Ravi Prakash 8882204074 ar.ravi2013@gmail.com

Okay, do you have any theme or colours in mind. Like do you want a modern look, ethnic look or a mix of both. Which colour family earthy tones like reds and browns or Mediterranean like whites, blue and green.