I had a girl that at two was right where yours is now. By the time December came around she hit 1500 grams so I paired her with a proven male. She laid 10 eggs for me (first clutch), 9 of which went to full term and hatched more than a month before she would have turned 3. By contrast I have a 3 year old girl that is still hanging around 1100 grams and haven't even tried pairing her yet. I have a 3000 gram girl that I paired and she just didn't go even though there were definite locks. I guess the most important thing is that she is of size, 1500 grams, and she has good body tone. Beyond that, it isn't really up to you anyways. You can try and put her with a male and if she is ready she'll go and if she's not, she won't. Best of luck whatever you decide.