The darker the blue, the more expensive the stone. Aquamarine has been popular since antiquity and was believed to calm waves and keep sailors safe as well as cure many illnesses. The stones are ...

Donald E. Hurlbert/ NMNH, SI You start with the stone, aquamarine, a word that means “seawater,” but not the deep-ocean blue that is the sea’s homage to the sky, nor the gray-green swells ...

As gemologist Sacha Jarmon, founder of LOVE SARO, describes: "Aquamarine AKA 'The Stone of Serenity' is referred ... but “won't be as expensive per carat as would be a diamond, emerald, sapphire ...