The zircons in the 925 silver jewelry are the hardest of all natural materials. The zircons in the 925 silver jewelry can shape any other gem, but no other gem can shape the zircons in the 925 silver jewelry. It can also be marked with a "standard durometer" instrument. Any hardness less than 9 degrees is the zircon in the fake 925 silver jewelry. The zircon in 925 silver jewelry is also oilphilic. If you draw a line on the surface of the zircon in 925 silver jewelry with a pen, it will form a continuous line, while other gems show intermittent broken lines. All the above methods are valuable for the identification of zircons in 925 silver jewelry. It can also be observed through a 10x magnifying glass. Under the 10x magnifying glass, most of the zircons in the 925 silver jewelry show defects, with triangular growth lines, and the surface of the zircons in the 925 silver jewelry has "red, orange, blue" and other colors of "fire" light, shining. The most accurate and reliable method is to use a "thermal conductance meter", which measures the thermal conductivity data to distinguish the zircon in the genuine 925 silver jewelry, but the "thermal conductance meter" is expensive.

As the zircon in 925 silver jewelry is a noble and luxurious first jewelry, it is not uncommon to replace or falsely claim the zircon in 925 silver jewelry with cheap gemstones, artificial gemstones or even glass, and there are various kinds of fake 925 silver jewelry. The identification methods of zircon in 925 silver jewelry are as follows:

Soviet drill: Cubic zirconia, early developed by the Soviets. Soviet diamond is an artificial compound, but in terms of dispersion, refraction and other aspects of the natural 925 silver jewelry zircon is very close to, and has a "fire" shiny attractive appearance. But it has a lower hardness (8.5) and can be distinguished from the zircon in the 925 silver jewelry. And the zircons in the 925 silver jewelry have much lower thermal conductivity than the zircons in the jewelry, which can be identified by a "thermal conductivity meter" to accurately distinguish them.

Zircon: Very similar to the zircon in 925 silver jewelry, it is the best substitute for the zircon in 925 silver jewelry. The identification method is that due to the polaricity of zircon and the large birefringence index, when a 10x magnifying glass is used to observe the ridges of the processed zircon, it can be seen that the prism at the bottom has obvious double shadow when viewed from the top side down, while the zircon in the 925 silver jewelry has no double shadow phenomenon.

Glass: The refraction rate of glass is very low, there is no such glitter as the zircon in 925 silver jewelry, especially when sunk into w