I've got a couple of females that are quite small. I've had them for around 9 years now. Both were wild caught adults and tend to be very poor feeders, however I've gotten several clutches of eggs from them. They seem to hover around the 800-1000 gram range and appear to be healthy in every other way.
Here's one of them after laying a clutch of eggs
Here's the clutch she laid.
Proof that your females don't need to be 1500g and 3y/o to lay a clutch. THANK YOU!