How much an appraisal of an already set diamond ring would cost?

I was wondering if anyone has a rough figure as to how much an appraisal of an already set diamond ring would cost. I'm looking to get diamond appraisal to be done in NYC. I'm pretty sure that I would need to get the ring appraised for my insurance company.

You can get more information about jewelry appraisal and its costs here Accredited Gemological Institute contact http://aginewyork.com/

Well there are many sources for know value of diamond ring like jewelrybyraphael.com, online diamond ring store and it will always different according to the area and diamond quality. The important thing is what is your budget for purchasing diamond set?