Square-cut Aquamarine Ring with Channel-set Diamond Band in PlatinumThis aquamarine and emerald cut diamond ring has a bold and contemporary design. The square, emerald cut central aquamarine, weighing 1. 67 carats, is held in 4 prongs of platinum protecting each corner of the vibrant blue gemstone. The aquamarine is set on a rectangular platinum band two baguette cut diamonds are channel set on each shoulder with a total diamond weight of 0. 40 carat.