"filling up her flute with Cristal"

Glasses of rose champagne
Creative Commons AttributionGlasses of rose champagne - Credit: FXR
 Cristal is a brand of champagne produced by Louis Roederer. It was first made in 1876 for Tsar Alexander II of Russia and, due to his constant fear of assassination, the bottles were made of clear crystal so that he could see the contents – this gave rise to its name.

Cristal is one of the world’s premier brands of champagne, with a  very high price tag and aura of exclusivity attached to it.