What's a Sapphire card what's consist of

Sapphire or "Blue" card requires earning 100,000 points over 6 months. Lots of perqs with s sapphire, like a free buffet every day or a food court credit, more comped room nights, comped concert tickets, merchandise and liquor give aways, access to the emerald lounge, and more.

I'm going to say its a type of players card and the level of your playing scale