I gave my friend to use my credit card. he said he will pay all the amount later. but after he? finished his w?

I gave my friend to use my credit card. he said he will pay all the amount later. but after he?
finished his work, he didnot pay any amount. now i am in problem cause he used more than 3 grand. please suggest me what to do now.
dnt tell me i am foolish. sometime even your trusted one harms you. 
i am thinking of calling the bank and letting them know that my card was stolen and none of the transactions were made by me. i am looking to avoid the transactions he used from my card. please give me suggestion which can help me not to pay money for his buisness. i dont care what bank will do to him. i want to charge for a fraud/stolen card. please Help me