Reasons why Amethyst Jewelry is Popular These Days Amethyst Jewelry that is naturally created and of good quality can be found in Sri Lanka, Brazil, Uruguay, Namibia, as well as in huge quantities in Namibia and America. South America holds the largest hoard of this gem. A few other elements, like the amethyst's size and rich colour, affect its price. The symbolic stone for each anniversary is tied to a certain type of gemstone. Considering its magnificence and importance. The stone for the sixth year of a marriage anniversary is amethyst.