Topaz of pure water
Colorless faceted topaz can be easily confused with diamond.
⠀
The most famous case of such confusion occurred with the famous Braganza diamond, which was in the crown of the ruler Portugal.
⠀
This stone weighs 1,680 carats and was long considered the largest diamond in the world.
⠀
The truth about this stone was told by the English court gemologist Mose. He asked to put the crown in the light and let fluff particles pass nearby. The fluff particles were constantly attracted to the crystal. The courtiers were very surprised, and the gemologist gave his conclusion: Gentlemen, it's topaz!