Uncover Opal Meaning, Astrological Benefits, Healing Properties, & Cleaning Process Opal, often referred to as the queen of gems, is a semi-precious stone celebrated for its remarkable array of colors, including white, green, blue, pink, brown, red, yellow, orange, and black. While it can be found in a colorless form, Opal Benefits is highly prized for its brilliant sparkle, durability, and clarity. The ancient Romans regarded opal as a stone of passion, naming it "Opalus," which translates to precious stone. Various cultures have their own beliefs regarding Opal Jewelry to signify their traditional beliefs and values.