__Hardness:__ 7.5
A kindly and knowledgeable elder gem who does patrol duty, secretary work, strategy planning, and other odd jobs. They seem to be partners with [Jade](https://anilist.co/character/123393/Jade). Euclase is kind, intellectual, and extremely perceptive. They're also good at math, and can recite any gem's age to the day on command. They have a strong sense of responsibility and often worry over the others.
