Ruby

This is a red valuable mineral, often asscoiated with royalty. The charlatan in Babbity Rabbity and her Cackling Stump requested several rubies as pay, for the casting of curative charms. The sword of Godric Gryffindor's sword was known to be adorned with egg shaped rubies. Behind the Scenes:It is unknown if rubies could help in the casting of curative charms, or if the Charlatan was lying to try and sound official.