In my country’s jewelry industry, the gems are classified according to their genesis types, and gems are divided into two categories: natural and artificial. Then it is further divided according to the composition and properties of gems. When categorizing jewelry and jade, taking into account the versatility and habit in the world, try to use the generally used internationally and tend to be unified classification principles, while highlighting my country’s traditional jewelry and jade varieties featuring jade.
my country’s current national standard GB/T 16552 “Names of Jewelry and Jade”,. According to the cause of formation, the jewels and jade are divided into two categories, つまり, natural jewels and artificial gems. Natural gems and jade include natural gems, natural jade and natural organic gems. Artificial gems include synthetic gems, man-made gems, combined gems and reconstructed gems.
(1) Natural jewelry jade
Produced by nature, it is beautiful, 耐久性, 希少な, and has technological value. The materials that can be processed into jewelry are collectively referred to as natural pearl baby jade, including natural gems, natural jade and natural organic gems:
1) 自然な宝石: refers to mineral single crystals (may contain double crystals) produced in nature that are beautiful, attractive, 耐久性, and rare, and can be processed into ornaments. The naming of natural gemstones directly uses the gem’s facsimile name or its mineral name without adding the word “自然”, such as diamonds, ルビー, エメラルド, 結晶, 等.
2) Natural jade: refers to mineral aggregates that are produced in nature and have beautiful, 耐久性, rare and technological value, and a few are amorphous. The naming of natural jade directly uses the basic name of the jade or its mineral (rock) name, and the word “ジェイド” can be added after the name of the natural mineral or rock, without the word “自然”, such as jade, 賀天翡翠, 秀翡翠, snake Stone jade etc. Except natural glass, 言葉 “自然” can be added in front.
3) Natural organic gems: refer to materials that are generated by natural organisms, partly or completely composed of organic matter, and can be used in jewelry and decorations. The naming of natural organic gemstones directly uses the basic name of natural organic gemstones without adding the word “自然”, such as coral, アンバー, coal, 象牙, 等. Except natural pearls, you can add the word “自然” in front.
(2) 人工宝石
Artificial gems refer to materials that are wholly or partly produced or manufactured by hand and used as jewelry or decorations, including synthetic gems, artificial gems, combined gems and remanufactured gems.