The Cristal ® number is a unique identifier assigned to each bottle of the prestigious Cristal ® champagne, produced by the renowned French champagne house, Louis Roederer. This number, etched onto the bottom of the bottle, serves as a symbol of authenticity and quality, ensuring that each bottle is a true representation of the brand’s exceptional standards. The Cristal ® number is not only a mark of distinction, but also a testament to the meticulous craftsmanship and attention to detail that goes into every bottle of this luxurious and coveted champagne.