How to distinguish between true and false diamonds

Diamond, also known as diamond, is a relatively expensive commodity on the domestic and foreign markets. In addition to its industrial value, it also serves as decorations such as boutonniere, rings, pins, earrings and so on. Moreover, since diamonds are natural treasures, they are also of high value for collection. High-quality diamonds have the following features: white color, large particles, transparent crystals, high purity, and working rules. When choosing a diamond, learn how to distinguish between true and false diamonds.

How to distinguish between true and false diamonds:

Hardness test diamonds are known to be the hardest naturally occurring substances. Nothing can mark a diamond. If it can be traced, it is by no means a diamond.

The thermal conductivity test calls for a simultaneous breath on the diamonds to be defended and other similar items. If the diamonds are on the surface, the water condensing on their surfaces should evaporate faster than the water mist on other items. This is because of the high thermal conductivity of diamonds.

Observation of reflected light with a magnifying glass can be observed at the waist of the diamond showing a fine matte and shiny light reflection. This feature of diamonds is unique.

Look at the growing point under a magnifying glass to observe that there are often grooves and triangle growth points on the crystal faces of genuine diamonds, while there are three types of fake products: 1 Common glass added with alumina, because of the increase in refractive index and dispersion, it is easy to stray into, but the hardness low. 2 Chemically synthesized sapphire and colorless spinel imitation, hardness is close, but the refractive index is low and birefringence phenomenon, visible under the magnifying glass ghost.

The chemical composition of similar chemical composition test pencil is the same carbon and diamond, but the physical structure is not the same, so many people use a pencil to detect the authenticity of the diamond, is a more practical and effective method, in the identification, first diamond Wet with water, and then use a pencil to gently sculpt. On the face of the real diamond, where the pencil is stroked, there is no trace, and if it is not a diamond, but glass, crystal and other materials, it will be on the surface. Traces are left, and under normal circumstances, pencil scribed to identify the true and false diamonds, the accuracy of this method is higher.