18k 42mm exclusive debut, the genuine 18k Cartier Ballon Bleu, made with American alligator leather. Each piece comes with a GTA certificate issued by a national authority, with detailed and specific parameters. Every certificate has a unique inspection number that corresponds one to one, with no duplicates. You can verify this on the official website of the issuing authority. This value is even higher than selling watches, let alone buying this brand. No one would go into this unprofitable business to create fakes. It s absolutely perfect for gifting, so act fast!