I checked Necrum's SV and the SV of the egg you traded him. His SV is 500 and the egg you traded him has a SV of 3321. Here's the proof: http://prntscr.com/24otr6. Also, Necrum is a respectable trader here on PC and would never scam anyone.
I didn't scam you, I am not the one who checked my own SV, so I'm having iloveeevee, a trade mod here, double check everything. If my SV is wrong, I'm gonna give you back your egg. No need to get ahead of yourself dude.