The price depends on flame size (bigger are more expensive) and generally, you get more for it, if it looks cool.
Flames are specific items. Mostly prices are better, when buyer like your flame (sometimes people are trying to get flame almost for free, looking for good deal for them).
Great example:
dl and lp me. I payed for my flame (forged by maylene, just for me) 83k. I dunno how much it is really value of it. I like it and in my opinion it is worth a lot of tcs. I get offer 18k, phew.
And when flame is harder to made, it will be more expensive. Normal flames are ussually worth around 30-40k for one, but wings, circles, hats (!) are very expensive, because making of flame like this taking a lot of time and not many people can forge it.
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