Gem

Gems can refer to either valuables that are found throughout a wide range of monster and boss loots, as well as gems used in the Gem Atelier.
Common examples of valuables:
* Yellow Gem
* Red Gem
* Blue Gem
* Green Gem
* White Gem
But is also commonly including other types of valuables for example:
* Small Amethyst
* Small Emerald
* Giant Emerald
* Black Pearl
Finally, it can also refer to the gems used in the Wheel of Destiny through the Gem Atelier:
* Greater Mystic Gem, Mystic Gem, and Lesser Mystic Gem, for druids
* Greater Sage Gem, Sage Gem, and Lesser Sage Gem, for sorcerers
* Greater Marksman Gem, Marksman Gem, and Lesser Marksman Gem, for paladins
* Greater Guardian Gem, Guardian Gem, and Lesser Guardian Gem, for knights