How to Tell if a Diamond is Real or Fake-Part-3

7Thermal conductivity identification

The thermal conductivity of diamonds can be one of the identification methods of diamonds. Because diamonds are carbon substances, it is recommended not to use or burn them directly. You can use hotter substances on one side of the diamond, and then touch the other side to quickly feel the heat. If the heat is too low or too slow, it may not be a real diamond. After the heat source is removed, the temperature of the diamond will drop quickly.

8Hardness appraisal

As the hardest substance in the world, diamonds have extremely high hardness and are higher than tempered glass and ironware. Strikes hard on glass and ironware with sharp diamonds will leave marks.

9 High refractive index identification

Diamonds have an extremely high refractive index and are extremely bright in the sun, which is why many women like them. Observing the diamond through the cutting mirror, you will find that the interior of the natural diamond is dazzling, with numerous and complex facets. Other counterfeit products are plain and unremarkable, with few sections or even invisible at all