Diagram: Orichalcum plate
The Witcher 3 Remastered Crafting Diagram

Diagram: Orichalcum plate is a crafting diagram in The Witcher 3 Remastered, added in the Blood and Wine expansion. It makes Orichalcum plate. A Master craftsman or better forges it for 320 crowns.

It takes 2 Orichalcum ingot. The crafting diagram itself has a base price of 64 crowns.