Amethyst is by far the most precious gem in the quartz group. It is transparent purple quartz with much historical royal importance. Purple is the color of royalty, and amethyst served as an important gemstone in this realm. Amethysts were featured in British crowns, Egyptian royalty, and the bishops within the Christian church.
A deep purple amethyst is the most valuable of amethysts with the Siberian Amethyst displaying a deep purple with red and blue flashes as the highest priced amethyst. Soft and warm tones of daylight are the best to view amethyst in. The most valuable amethyst is free of inclusions and is transparent in show. Brazil has the largest deposits of amethyst in the world.