Amethyst is not primarily defined by carat weight; this is different to most gemstones where the carat weight exponentially increases the value of the stone. The biggest factor in the value of amethyst is the color displayed. The highest grade amethyst (called "Deep Russian") is exceptionally rare and therefore, when one is found, its value is dependent on the demand of collectors. It is, however, still orders of magnitude lower than the highest grade sapphires or rubies (padparadscha sapphire or "pigeon's blood" ruby). Amethyst Amethyst is a violet variety of quartz. The name comes from the Koine Greek ἀμέθυστος "amethystos" from
Amethyst RPG also takes into account the disruption of modern technology by magic; the more technologically advanced an item is, the more likely that the Enchantment Disruption Field that encompasses the globe will affect it. Rules in detail are provided for all facets of technological and magical interaction. "Amethyst" was originally published under 3.5 rules and recognized with an Honorable Mention for Best Setting in the 2008 Gen Con ENnie Awards. "Amethyst: Foundations" by Chris Dias was previewed at Free RPG Day of 2009, and then published by 2010 by Goodman Games as a new science fantasy setting for 4th edition "Dungeons