In The Witcher, there are several kinds of "gems", or precious stones. Most can be used as gifts or in exchange for goods or services:
Image Name Locations and uses Buy Sell Amber - wardrobe at the Reverend's house in the outskirts
- sometimes also upstairs at the house across the street from the Reverend's
- sometimes in the trunk next to Triss' bed
- sometimes on Dagon's body after the duel in Act IV
- the druids in the cave in the swamp cemetery will exchange this gem for potions
40 20 Diamond - you can win a diamond from Zoltan in your first drinking contest with him
- the gossip in Act II will accept either red gloves or a diamond for a sexual encounter
- In a trunk from the Lionhead Spider Cultists' lair
- there is also a quest diamond (Gramps' diamond) in Act IV, but it cannot be sold and looks entirely different
- the clerk at the town hall takes diamonds as gifts in return for sexual favours
- the druids in the cave in the swamp cemetery will exchange this gem for potions
120 60 Ruby - Salamandra often carry rubies
- the druids in the cave in the swamp cemetery will exchange this gem for potions
80 40 Sapphire - On Savolla's body in the Prologue
- In the "goal" trunk in the crypt in the sewers in Act II
- Wardrobe, 2nd floor, non-human barracks in Temple Quarter during Act III
- In the "goal" trunk in the Bandits' hideout (fisstech lab) in the sewers
- Blue Eyes takes sapphires as payment
- the druids in the cave in the swamp cemetery will exchange this gem for potions
60 30 Emerald - not found un the game
– –
Notes
- The teleportation crystal which Kalkstein gives Geralt in Act II is also labelled as a gem, but it can neither be bought nor sold as it is a quest item.
- The swordsmith off the Trade Quarter marketplace will require a gem before he reforges a sword. There seems to be no benefit from doing this.