21.00 Tourmaline Cocktail Ring in 14k Yellow Gold.  This modern cocktail ring features a 21.0 carat green tourmaline finished in 14 karat yellow gold. The center tourmaline has a marbled, sea green hue. The primary stone is bezel set in polished 14 karat yellow gold. The shoulders of the band showcase ornate, knotted engravings that melt into a comfortable split shank. A glamorous ring for tourmaline lovers!