Does the subject want to ask, "Can I wear a coral necklace to go through customs?" Of course. Coral necklace is a new type of jewelry, which belongs to organic gemstones. Ruddy in color and beautiful in texture. You can go through customs wearing a coral necklace. This is a normal ornament, and the customs will not check it. Customs is an administrative agency established by a country at coastal, border or inland ports to implement import and export supervision. According to national laws and regulations, the inbound and outbound postal articles, goods, passengers' luggage, currency, gold and silver, securities and means of transport are supervised and inspected, and customs duties are levied, and smuggling is prohibited.