Probably one of their hybrids then, ameraucana also have peacombs, EE are closely related to them.
Looks more like a marans hybrid, maybe one of their olive eggers? Since it is a cockerel, you may never know for sure! ☺
Found this on their website, has to be one of these. You can probably narrow it down by eliminating the ones you know it is not. Looks like they have alot of mixes, hybrids:
Description:
This assortment of intense and unusually-colored eggs will knock your socks off! It's one of our most...
Well, agree not an EE, so you will not need to eat your hat!☺
Looks to be a cockerel with a comb (single or straight type) that size this young. Looks mostly like an australorp. Where did you get the egg?