'''Gems''' are precious stones which sometimes appear on the ground when [[digging]] or [[mining]] in caves, in which their quality is capped by your mining skill and/or tile quality. They can also be received as a gift from the gods when praying as a priest of over 50 [[faith]].
Gems can be either sold on to another player or a [[trader]], for varying amounts of money, or can be used by priests to "[[vessel]]" their [[favor]], saving it for later use. Gems never decay, although the vessel spell 'using' a vesselled gem to recover favor causes them to lose some quality each time it . the amount of QL lost is castequal to the amount of favor taken to fill the priests favor bar divided by 2. E.g. a priest has 20 favor and 60 faith, the gem will provide 40 favor at a cost of 20 QL. Casting vessel on a gem under 10QL will lower the QL of the gem by 3, and store no favor - useful for grinding the channeling skill.
All the "common" gems are equally rare and at equal qualities worth the same/store the same amount of favor. The Black/Star gems are rare versions of their respective "common" counterparts. All the "rare" gems are equally rare and at equal qualities worth the same/store the same amount of favor. Their value and ability to hold favor is double that of the common ones though.