Aquamarine S.S. Oval Faceted Ring Size 7-8 #BC0391Size: Sz 7. 75, Approx. 6. 3g The word Aquamarine comes from Latin meaning sea water and is reminiscent of the ocean. The color blue green in this stone promotes calming, and courage as well because it was used extensively by sailors for protection against drowning or taken into battle with them when they were on quests where their lives depended upon winning. Today its main use still remains protective amulets but now you can also find these pieces