There are multiple options for crowns (caps). Metal, which is the cheapest, but not aesthetic. Porcelain Fused Metal (PFM) comes next, cheaper than Zirconia, but a good option if you are looking for something both aesthetic and economical. Zirconia is definitely one of the best options, but more expensive. It also depends on which tooth it is.

Crown range varies widely ..it totally depends  which material you want to have..like porcelain fused metal or zirconial crowns .zirconia crowns are very common and more esthetic too,which ranges 8k to 12k.