not many people have these guys I would say so their probably double or even triple what you would pay for eastern spiny tails.
Adult spiny's are adult 250 juvies 100 i think ,so maybe jewelled are around 350. I have seen giant cave geckoes for even more at 600 each.
I dont know that much about gecko prices but their are alot of people who do.
So dont quote me on those prices.