Yeah it is. The Roman numeral nine lol. People need to stop relating everything to the holy grail and the illuminati and all that dumb bullshit. It's a video game. It's the emblem of the nine. And it's different for xur because he's an agent. Not actually a part of them. He does what they say. The nine are the planets, that mark is there because this is the last haven on one of the nine. I'm sure it has some other meanings (affiliated to the game) but nothing to do with Christ or the holy grail or any of that bullshit.

No its not. Go look at Xur, his is different