About RuiLi The difference between natural diamond and synthetic diamond user manual | RuiLi

June 07, 2024

  There are a number of significant differences between natural diamond and synthetic diamond, and here is a detailed summary of these differences:

1. Appearance Differences:

  Natural diamond: the appearance is irregular, often showing different degrees of concave and convex, the crystal plane is curved crystal plane and the crystal edge and crystal plane are passivated, and the crystal shape is often round.

  Synthetic diamond: Regular appearance, showing a smooth and flat surface. This is because synthetic diamond is synthesized artificially using high-temperature and high-pressure technology, which can be precisely manipulated during the growth process.

2. Physical property differences:

  Density: Synthetic diamond has a higher density of 3.52 g/cm³, which is slightly higher than the density of natural diamond (3.51 g/cm³).

  Purity: The purity of synthetic diamond is generally above 99.9%, while the purity of natural diamond is about 98%. Natural diamond contains trace amounts of impurities, while synthetic diamond may contain some amount of metallic and non-metallic impurities.

  Thermal stability: Synthetic diamond is thermally stable than natural diamond and can withstand higher temperatures and pressures.

  Conductivity: Synthetic diamond usually has good conductivity.

3. Molecular composition differences:

  Natural diamond: formed from the element carbon, pure composition.

  Synthetic diamond: formed by simulating the high temperature and high pressure environment on the earth, its composition contains a certain amount of metal and non-metal impurities in addition to carbon.

4. Origin Difference:

  Natural diamond: mainly produced in Africa, Canada, Australia and other countries.

  Synthetic diamond: synthesized in a laboratory, regardless of geographical origin.

5. Price Difference:

  Natural diamonds: expensive due to their rarity and difficulty in producing.

  Synthetic diamond: relatively low production cost and relatively inexpensive.

6. Differences in application fields:

  Natural diamonds: more commonly used in high-tech fields such as lasers and piezoelectric devices.

  Synthetic diamond: widely used in tool cutting, grinding and polishing, but also in optical window materials, electrode materials, biosensors, quantum information computing and processing, aviation, aerospace, national defense and other fields have important applications.

  In summary, there are significant differences between natural diamond and synthetic diamond in terms of appearance, physical properties, molecular composition, origin, price and application field. When consumers choose, they should decide according to the actual application scenarios and needs.

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