How much does anice gold chain cost at a jelewry store should I try to bargen down the price for the chain

How long is a piece of string??

There are so many variables as to be almost impossible to answer accurately.
You could try and haggle, but make sure you have CASH in your pocket to do so.

Yes, the percentage of gold, the total weight, even the design can all make a difference, you may look up some varoius types of chains on places like eBay or online jewerly stores.