This my first mod and it is a simple .esp file that replaces the default silver moonstone circlet model used by the mage circlet (reward given by Savos
Aren during the questline of Winterhold College) with the silver sapphire one.
Works with all the vanilla races and with both gender.
Might be useful if you use it on your character and already have some good texture mod for circlets: as my mod is just a model swapper it will be fully compatible with any texture mod of sort.

To uninstall, delete the .esp file with the name of my mod in Skyrim's data folder.

edit:
changed entry that displayed the sapphire circlet model also with standard moonstone models. now works correctly, but for some reason the circlet won't show on elves.

edit.2:
now works again with elves.