How much does a new mantle cost?

Excuse me, I was wondering about something. Could you possibly enlighten me on the matter of the pricing for a brand-new mantle? I've been looking around and it seems like there's quite a range in prices, so I'm not quite sure how much to budget for one. Could you provide me with a rough estimate, perhaps? Or maybe even some factors that might affect the cost? I'd really appreciate any information you could give me.