Amethyst derives its name from the Greek world ‘ametusthos’ which means ‘not intoxicated’. In the past, Greeks wore amethyst and carved out drinking vessels from it. It was believed to prevent drunkness and overindulgence. Today, it is a stone which is believed to be able to convert lower vibrations to higher frequencies, protect and cleanse our energy from negative influences and attachments. It is also the birthstone for Pisces.