Citrine
From Shadow of the Throne Wiki
Appearance: A translucent light to medium gold stone. The larger the stone, the more golden the tone.
Description: Citrine is said to stimulate memory, enhance creativity, and motivate writers, and may be worn as a protective talisman. A good healing stone, especially for digestion and toxicity. Symbolizes light-heartedness and joy.
Citrine has been associated with many cults of sun-worship, and Immaculate writings warn it was favoured by Anathema, making it unpopular in the Realm and more likely found adorning jewelry in Threshold courts.