When diamonds form deep in the earth under extreme pressure and heat, defects can form in the crystalline structure and metal impurities become trapped inside the diamond, and due to these factors, impurities accompany the stone, Here is what the purity factor “Clarity” reflects, which is the third factor that helps you buy a diamond.
The clarity of the diamond is evaluated based on the extent to which the stone contains defects and impurities and the size of those impurities.
The following metrics show the purity scale within each diamond:
FL – IF flawless
VVS1 – VVS2 Very very small impurities
VS1 – VS2 Very small impurities
SI1- SI2 – SI3 Small impurities can be seen when looping a diamond.
I1 – I2 – I3 Small impurities can be seen with the naked eye.
The stone should not be pure or flawless, to make it look better. It is about how diamonds appear clean.
If you want to buy a SI1 purity stone, but it appears completely clean when viewed with the naked eye, and it is compared to another more pure diamond stone but it is equal to carat weight, cut and color The SI1 stone price can drop tens of thousands of dinars for the lowest and invisible purity of stone.
There are many different types of impurities, but feathers and crystals are the most common form of diamond impurity.