It's really variable. I've had them weigh less then 20g for twins or 100g for some really large eggs. What I've typically noticed with my clutches is that the size of the clutch will generally be around 1/3 of the females total weight no matter how many eggs are in the clutch. For example, in a 5 egg clutch from a 2000g female the eggs will be large and larger hatchlings will come out of them whereas a 10 egg clutch from a female the same size will have smaller eggs and the hatchlings will weigh less.