This page is a list of all gems in ADOM.

Gems come in three categories: magical gems, valuable gems, and worthless glass. All of them weigh 1s.

Gems can be used with slings. The base damage value is 1d1 rather than the 1d4 of a rock, but they are lighter, and crystals of fire will create fireballs at their point of impact.

Value of gems listed are for single gems, relative to each other and not absolute

Name Category DL Effect
Crystal of power Magical gems 5 Restores some PP when used
Crystal of light Magical gems 5 Lights the area around the player when used
Crystal of knowledge Magical gems 5 Maps all/part of the surrounding area when used; if blessed it may grant +1 or +2 to Learning: observed an increase to the base stat to 31 Learning: the potential is respected only if you are at the potential limit. (i.g) if 21 is your potential but you roll a +2 when at 20 you'll get 22, an increase to your potential of 1. If you attempt to use when at your limit, you will not see increases at all.
Crystal of fire Magical gems 5 Creates a ball of fire when used
Crystal of darkness Magical gems 5 Darkens the area around the player when used
Crystal of health Magical gems 9 Restores some HP when used
Ruby Valuable gems 5 ~446 gold
Opal Valuable gems 5 ~107 gold
Emerald Valuable gems 5 ~357 gold
Aquamarine Valuable gems 5 ~267 gold
Amber stone Valuable gems 5 ~178 gold
Turquoise Valuable gems 5 ~312 gold
Topaz Valuable gems 5 ~133 gold
Sapphire Valuable gems 5 ~402 gold
Worthless piece of ____ glass Worthless glass 5 ~7 gold
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