Jewelry and jade are divided into natural jewelry and jade and artificial products according to their genetic types. 1. Natural jewellery and jade are divided into natural gemstones, natural gemstones and organic gemstones according to their causes and components. 1. Natural gems: such as diamonds, rubies, sapphires and emeralds. 2. Natural gems: such as jadeite, nephrite and jade. 3. Organic gems: such as pearls, corals, amber, etc. Cultured pearls also belong to this category. 2. Man-made products refer to materials that are totally or partially produced or manufactured by human beings and used as jewelry or decorations, including synthetic gems, artificial gem and amber. 3. Imitation gems are artificial products that imitate the color, appearance and special optical effects of natural jewelry and jade. For example, imitation diamond, imitation jade and so on. See what the answer is. You can also go to the website of Royal Yipin for more detailed information.