Jewelry jewelry is divided into six categories, including gem jewelry, precious metal jewelry, emerald jewelry, semi -precious jewelry, and artificial jewelry.

Gem is the most beautiful and valuable type of ore in rocks. They are bright in color, crystal texture, bright luster, hard and durable, and at the same time are scarce. They are natural mineral crystals that can make jewelry and other uses. Gem jewelry, including: diamond; ruby; sapphire; emerald (emerald).

The precious metal jewelry alloys are mainly composed of 4 precious metal elements of gold, silver, platinum, and 钯 钯. Use as surface decorative plating materials. Precious metal jewelry, including: gold, platinum, silver.

Emerald jewelry is an important classification of jewelry, mainly refers to the jewelry made of emeralds, including emerald earrings, emerald bead chains, emerald bracelets, emerald ring, etc.

Half -gem, one of the gem types, and a lot of semi -gem. The main semi -gem varieties are: tourmaline, crystal, greenite, Topa stone (yellow jade), sea salamander, garnet, olives, tiger -eyed stones (woody change (wood change (wood change transformer (wood changes change Stone), stretch stones (moonstone), star light stone, obsidian, malachite, turquoise, red -patterned stone, amethyl, Dongling jade, Aya, chalcedony, Czech meteorite, Opa, Shuju, Shuju, and Shujia Laishi, pyroxyl, square stone, etc.

Artificial gemstone refers to the crystal or amorphous body of the corresponding corresponding objects made by artificially manufactured and naturally known. When the name is named, the word "artificial" must be added in front of the material name, such as "artificial scallion", "artificial pyrine aluminum g utensils", etc., except "glass" and "plastic". 1. Shells; 2. Enamel; 3. Jingtai Lan; 4. Synthetic gems, such as synthetic diamonds, artificial rubies, artificial sapines, artificial emeralds, artificial emeralds, etc.; And other various gold jewelry