Rules edition: This guide summarizes 2014 fifth-edition spell components and gem values. The spell text at your table is authoritative. The magical coin and gem effects in the examples below are DM-created options, not standard rules.
Gems can be treasure, trade goods, spell components, or story objects. A listed value tells you how a component must meet its cost; it does not mean every gem of the same color has the same value or magical properties. The DM determines a gem’s value when the rules do not specify one.
Gems as 2014 spell components
- Identify: requires a pearl worth at least 100 gp and an owl feather. The pearl is not consumed by the spell.
- Chromatic orb: requires a diamond worth at least 50 gp. The diamond is not consumed.
- Revivify: requires diamonds worth 300 gp, which the spell consumes.
- Raise dead: requires a diamond worth at least 500 gp, which the spell consumes.
- True resurrection: requires a sprinkle of holy water and diamonds worth at least 25,000 gp, which the spell consumes.
A component with a listed cost cannot be replaced by a spellcasting focus. A component is consumed only when the spell says so. Check the spell description before treating a gem as reusable or as lost after one casting.
Using treasure gems
The 2014 equipment rules list gemstone values and say that gems retain their full value in the marketplace, though the DM may require a buyer in a large community for exceptionally valuable treasure. A gem’s listed value is a useful starting point for treasure, not a promise that every seller will offer that amount in every situation. For encounter rewards and hoards, use the 2014 Dungeon Master’s Guide treasure guidance and adjust for your campaign.
Gems can make memorable quest objects because a spell may require a particular value or kind. A party searching for a diamond that meets revivify’s cost has a concrete objective. Keep the rules distinction clear: the spell asks for diamonds worth a total of 300 gp; it does not require a unique black diamond unless the DM adds that detail.
Optional DM-created magic
Coins or gems with special powers are homebrew magic items unless an official item says otherwise. A one-use gem that releases a spell, a token that casts misty step, or a gem that grants a bonus to a check needs a specific item description: activation, action, duration, uses, spell level, saving throw if any, and whether it requires attunement. These examples do not override spell components or item rules by default. Agree on their effects before placing them in the campaign.
For a lighter option, make a gem emotionally or culturally valuable without granting a mechanical bonus. A moonstone could be a wedding gift in one town, while a ruby bears the crest of a rival house. The party can decide whether to keep it, sell it, or use it to open a conversation.
Make treasure memorable
Describe a gem’s cut, setting, wear, or origin instead of relying on color alone. Tie a valuable stone to a person, place, or event. For a custom magical effect, label it as an optional item and use the same rules for every character at the table.
