Jewelry is divided into broad sense and narrow sense:

Jewelry in a narrow sense refers to jade products;

Jewelry in a broad sense should include jewelry, handicrafts or other treasures made of gold, silver and natural materials (minerals, rocks, organisms, etc.). ) and has certain value.

Jewelry is divided into natural jewelry and jade (natural gemstones, natural jade and natural organic gemstones) and artificial products (artificial gem, recycled gemstones, divided gemstones and synthetic gemstones).