Sometimes, the saturation and "garden" inside the gem is so perfect, that the lapidary simply polishes a rounded form, called a cabochon. This yields luscious colors, and soothes the eye as the light seems to undulate almost like a cat's eye. That is the case with this gorgeous unusualgreen tourmaline ring, bezel set in soft 18kt gold, set low on a comfortable flat band. Green Tourmaline 18k yellow gold Size 7, can be resized within a range.