Simple and sophisticated ring with the most beautiful aquamarine stone. Use it alone or put more together for a unique look. 18K white gold, diamond and aquamarine. The Nord Blue ring is made in 18K white gold. Set with the finest 0.65ct baguette-cut aquamarin as well as their calm signature diamond. Brill.0.003ct TW.VS. The socket measures 9x5.40mm. This ring is also found in 18K gold.