It's true. As long as it is bought at the Cartier counter, the original factory produces it, has an official invoice, and the price is similar to the official one, it is all true. Cartier couple ring is a ring owned by Cartier company, which was founded in Paris, France, 1847. Cartier has become a royal jeweler in European countries, and is known as "the jeweler's emperor, the jeweler of the emperor".