The difference between cultivated diamonds and natural diamonds lies in the way of formation, characteristics, price and certificate.

1. Formation mode: Seed diamonds are artificially introduced through technical means to form diamond crystal structure, while natural diamonds are naturally formed, not artificially manufactured.

2. Features: A small amount of cultivated diamonds can be attracted by magnets, while natural diamonds cannot be attracted by magnets.

3. Price: Cultivated diamonds are artificial diamonds with large output, so the price is low, while natural diamonds are naturally formed with small output and high price.

4. Certificate: In order to facilitate consumers' identification, GIA has added new project regulations to the classification certificate of laboratory-cultivated diamonds, and the waist of the cultivated diamonds will be engraved with the words "laboratory-cultivated" and the GIA certificate number by laser. In the grading report of cultivating diamonds, GIA will also indicate whether CVD technology or HPHT technology is used for diamonds. Natural diamonds don't have these.

The use of cultivating diamonds

1, Jewelry: The cultivated diamonds can be made into various styles of jewelry, such as rings, necklaces, earrings, etc. Its appearance and hardness are the same as those of natural diamonds, but the price is more affordable.

2. Industrial application: Because the artificially cultivated diamonds have excellent mechanical, thermal, optical, acoustic, electrical and chemical properties, they can be used to manufacture various industrial products, such as abrasives, cutting tools, cutters and drills.

3. Laboratory research: Because the artificially cultivated diamond can artificially control its growth process and crystal structure, it has important application value in laboratory research, and can be used to study the growth mechanism, physical properties and synthesis methods of diamonds.

4. Ornaments and artworks: Because the artificially cultivated diamonds have beautiful appearance and excellent physical properties, they can be used to make various decorations and artworks, such as crystal flowers, glass products and ceramic artworks.

The above contents refer to Baidu Encyclopedia-Artificial Diamonds Baidu Encyclopedia-Natural Diamonds.