I would roughly put it as btwn $7000- >$20,000
This depends on whether it's a first surgery or a repeat (revision) surgery, the complexity and time needed for the operation, the use of implants or graft harvest from other parts of your body, and of course the surgeon's experience and facility fees of the operating theatre.
The cheapest rhinoplasty will be the "simple" rhinoplasty which is that of inserting an implant into the nose, but that will usually not give the best results.