The original author has given free permission to do this. This is NOT my mod. This is an improved version of it.

In the mod Craftable Circlets by Monochrome Wench,

Most circlets require dwarven metal to be crafted but this mod changes it to be corundum. Simple,  The only reason I add this is because Wench isn't updating the mod anymore and I wish to improve it.

All credit for this mod goes to Monochrome Wench.