The Sephirot form a group of ten artifacts which resemble stones or amulets. Each one of which stands for a different attribute. The singular form is sephirah.
In The Witcher computer game
Spoiler warning: Significant plot details follow.
A Mysterious Tower and Monoliths, story quests in Act II, demand the collection of all these artifacts. In order for the game to progress, they need to be placed inside certain ancient obelisks in the Swamp. The stones' attributes are as follows:
Chocc'mah A Sephirah symbolizing Wisdom. 
Ghe'vrath A Sephirah symbolizing Judgement, Strength and Severity. 
Keth'aar A Sephirah symbolizing Crown.
Kezath A Sephirah symbolizing Mercy, Love and Grace.
Maal'kad A Sephirah symbolizing the Kingdom.
Neh'tza A Sephirah symbolizing Endurance and Victory.
'Oth A Sephirah symbolizing Majesty and Glory.
Tipperath A Sephirah symbolizing Compassion and Beauty.
Veen'ah A Sephirah symbolizing Understanding.
Y'esath A Sephirah symbolizing the Fundament.
Associated quests
Trivia
Sephirot offers further reading about this Kabbalistic idea.