User blog comment:B214/General Discussion/@comment-27083298-20160929165937/@comment-29963364-20160929204908

In episode 9 of Season 3 (BorN), we see both Sirzech's and Vali's magic circles and their symbols. Sirzechs when he confronts Crusery Asmodeus, and Vali when he meets up with Kuroka near the end of the episode.

It's not just their color that's different, there's also a slight difference between the symbols themselves. Take a close look.