Sorry if I sound suspicious here, but honestly, we've had someone try to auction off something they didn't have (also retired CS eggs) before. On your profile, I see nothing to hint that you might have this Omni egg. So, just to ease all our doubts right off the bat, it'd be lovely if you could just put the egg in your gallery so we could all know you own it.
I'm not accusing you of anything, I'm just tired of auctions for items someone doesn't actually have so I like to be sure the person has the items before doing anything. I'm sure others will agree with my sentiments.