There was a guy on here yesterday whose 5 month old panther weighed in at 60-70 grams( or so he says) and the thing did look huge!!! I questioned if he was sure that it was 5 months old and he assured me it was because he had it since 3 months old. I never weighed my cham until last week and at 10months he weighs about 150 grams. I don't really know if there is a set weight per say that every chameleon has to follow. I think as long as yours is healthy and is gaining weight, that is the main thing. 10g in a week sounds pretty good! I think they all grow at their own pace and some are slower than others and some are just going to be bigger than others when they are full grown. If he is eating, drinking, and growing, then I wouldnt worry. I am sure there are tons of people who are going to chime in on here with their weights so you can compare.