Looks like CD Projekt RED has confirmed whose school the medallion from the new installment of The Witcher belongs to

This week, CD Projekt RED officially confirmed work on a “new saga” in the The Witcher universe and published the first art. It represents an unusual type of medallion, sprinkled with snow.

Some fans hope this is an updated medallion from the School of the Cat: they want to see Ciri as the main character and the girl just wears a similar decoration in”