Saphira

To his surprise, he sensed a similar strain of pensive melancholy from Saphira. Neither sorrow nor regret was a normal part of her personality, so he wondered at it and would have questioned her, except that he also sensed a stirring of something deep within her, like the awakening of some ancient part of her being.

The song ended on a long, wavering note, and as it faded into oblivion, a surge of energy rushed through Saphira—so much energy, Eragon gasped at its magnitude—and she bent and touched the star sapphire with the tip of her snout. The branching cracks within the giant gemstone flared bright as bolts of lightning, and then the scaffolding shattered and fell to the floor, revealing Isidar Mithrim whole and sound again.

But not quite the same. The color of the jewel was a deeper, richer shade of red than before, and the innermost petals of the rose were shot through with streaks of dusky gold.

Ascension, Brisingr, pg 561