It is more confident to have a test certificate.
The color is darker and brighter, and the possibility of artificial high temperature optimization is not ruled out.
However, the general optimization is also recognized in the national standard, so the basic judgment is genuine and you can wear it with confidence.
There are a lot of cotton-wool-like substances in it, which are crystal-like.
Permeability can also
Hand row, enough material
Nice product, right?
Amethyst can promote marriage and family harmony. Oh, God bless you!