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Does Jay-Z still own Armand de Brignac? Jay-Z retains a 50% ownership stake in Armand de Brignac. n February 2021, he sold an equal share to LVMH's Moët Hennessy division Why is Armand de Brignac so expensive? Armand de Brignac (also known as "Ace of Spades") champagne is expensive due to a combination of factors related to luxury branding, high-quality production, and marketing. Here’s a breakdown of why it commands such a premium price: