Flamebright Pendant

The Flamebright Pendant is/was a silver{?} necklace containing a bright red crystal pendant, which had been passed down in Aubrey's family for generations. Aubrey initially believed that the pendant simply enhanced her long-dormant magical powers, but it was later revealed to be a tiny shard of the Great Crystal {is that its proper name?} located in the heart of Sylvain City.

History
The shard was separated from the rest of the crystal sometime in the 1500s or 1600s A.D. (this rough date is inferred from the "conquistador" breastplates which the Earthling invaders wore and the cannons they used to shatter the crystal, as described in Episode ??). The shard was reunited with the rest of the Great Crystal during the Finale Arc.

Trivia
Though the Great Crystal of Sylvain is repeatedly described as a vivid shade of orange, the crystal of the Flamebright Pendant is a fiery red; this discrepancy is never{?} directly explained.