Two-Tone Emerald Cut Aquamarine Ring w/ Diamonds in 14k.  This beautiful modern cocktail ring features a 8.58 carat emerald cut aquamarine with diamond accents set in 14 karat white and rose gold. The aquamarine is set with flat prongs and has a single cut diamonds in sections on each side. Contrasting with the diamonds and two tone mounting this gorgeous blue aquamarine really stands out with its wonderful size.