Blue topaz
Topaz is the birthstone for November and has a blue color.
Natural blue topaz with a deep color is very rare, and those on the market are mainly irradiated.
Depending on the shade of color, it can be divided into three types: sky blue, Swiss blue, and London blue.
Karatz GemMagazine
" Blue topaz "
Karatz GemMagazine
" Blue topaz "