35 Advertising; business management; franchising, namely, services provided by a franchisor consisting in the assistance, management and development of a commercial business for others; organization and management of trade fairs and events for commercial and/or advertising purposes; demonstration of goods; bringing together, for third parties, of a variety of goods in the jewelry, costume jewelry and watchmaking sectors, enabling consumers to conveniently view and purchase those goods; retailing and wholesaling, also online, of goods in the jewelry, costume jewelry and watchmaking sectors; import-export agency services; sales promotion services for third parties; sales services of the following products in a virtual environment: jewelry, watches, chronometric instruments, diamonds and precious stones and downloadable digital files authenticated by non-fungible tokens (NFT)