What does it mean to sign the amethyst?

Amethyst represents spirituality, spirit and high-level love, and can be used as a token of love and pledge for admirers. As a traditional amulet, amethyst can usually drive away evil spirits, enhance personal luck, promote intelligence, calm emotions, improve intuition, help thinking, concentrate, enhance memory and give people courage and strength. I think signing Amethyst should show that you have been lucky recently and your studies are good.