How much did a lightsaber cost?

I'm curious, could you please elaborate on the cost of a lightsaber? Is there a standard price range for these iconic weapons, or does it vary depending on factors such as their design, materials used, and any special features they may possess? Additionally, are there any reputable sources or manufacturers that one could turn to in order to acquire a lightsaber, and if so, what kind of budget should one expect to allocate for such a purchase?