The marbled cobalt blue of the Aurora Optima is one of our favorite colors. We believe this to be the "Mare" version of the luxury pen. Italian for "the sea," these pens came in other colors representing various elements important to life on earth such as the sun and greenery. Our preowned pen is in excellent working order. You will love writing with its smooth 14k gold nib. It is listed as a fine-point nib, but it skews closer to the medium side of writing. Click the headline for close-ups. The pen itself only has light wear from use and looks gorgeous. The perennial problem with these pens is that the ink-view window never seems to get totally clean. We have flushed this pen many times with water, and there is always a trace of black ink that refuses to come all the way out. That ink is so diluted at this point that it shouldn't mess with your preferred ink that much. 12.7cm capped.