AMETHYST has a purple, transparent colour and has for very long been considered to be fit royalty. The shade of purple may vary, and it is the ones with the deepest colour that are the most appreciated. In Tibet, the amethyst is sacred to Buddha and Leonardo Da Vinci wrote that amethyst was able to dissipate evil thoughts and quicken the intelligence.
The stone can be found in Brazil, Uruguay, Bolivia and Argentina, as well as in Zambia, Namibia and other African countries.