I see a pastel, as far as age based on size it depends on a lot of factors, size out of the egg, how fast the animal was started, whether the animal was maintenance fed or not, whether the animal is a picky feeder or not, fast, prey size offered, frequency etc I have seen 1 year old weighing 1000 grams just like I have seen some at 200 grams..
The only way for you to know would have been to get the info from the person you acquired the animal from, this info is generally provided when you buy from a reputable breeder.
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