Need help with the symbol on Darius's Cape

Hey guys, im making a Darius cosplay, and i like to be as screen accurate as possible, and i don't see anywhere where i can view the symbol of his cape, I thought it might be either the Noxis coat of arms, or perhaps his family crest.. Is there anyone out there that knows what actually is on there?

These were some of the screenshots i was able to get out of the Cinematic, hope it helps anyone!