het pied female . . . 125 usd hatchling
1600 gram . . . 800 usd . .

125 + 160 = 285 . . .

So its not always true for that rule, potentially it is up to maybe a point, say 1000 grams?

To the OP yellow belly female with size, I'd expect 400-450 just from what the market has looked like.