Costs vary from state to state from city to city and even from county to county. The average cost of a crown in Los Angeles will be more then one in Omaha, and will be more in Beverly HIlls then in other parts of Los Angeles. The most important thing is to get a dentist you trust whose quality of work is exceptional.
There is No Such Thing as an "average cost". Costs vary widely, depending on the region of country, the experience and quality of the dentist and the laboratory used. Fees can cary from $900-$2900!