Aquamarine derives its name from the Latin &quot;aqua marina&quot; meaning &quot;water of the sea&quot;, no doubt inspired by its delicate blue or turquoise colour, suggestive of the tint of seawater. It is closely related to the gem emerald. Aquamarine can be found in many locations around the world, its finest coming from Russia.<br /> <br /> Ancient sailors traveled with aquamarine crystals, believing that it would ensure a safe voyage, and guarantee a safe return; they often slept with the stones under their pillow to ensure sound sleep. They believed the siren’s (mermaid) fish-like lower body was made of aquamarine.