1, natural gemstone

Natural gemstones refer to natural, beautiful, durable and rare mineral single crystals or double crystals that can be processed into decorations.

2. Natural jade

Natural jade refers to the mineral aggregate produced in nature, which is beautiful, durable, rare and has technological value, and a few are amorphous.

3. Natural organic gemstones

Refers to materials generated by natural organisms, which are partially or completely composed of organic substances and can be used for jewelry and decorations.

4. Synthetic gems

Refers to the crystal or amorphous body that is completely or partially made by human beings and has a known counterpart in nature, and its physical properties, chemical composition and crystal structure are basically the same as the corresponding natural jewelry and jade. Such as synthetic rubies, synthetic sapphires, synthetic emeralds, synthetic spinels, etc.

5. artificial gem

Refers to artificial crystals or amorphous bodies, and there is no known counterpart in nature. Such as synthetic strontium titanate and synthetic cubic zirconia.

Step 6 splice gems

Refers to jewelry and jade made of two or more materials, which gives people an overall impression. For example, split opal.

7. Re-create gems

Refers to melting or pressing the fragments or chips of natural jewelry and jade into jewelry and jade with overall appearance by artificial means.

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