I purchased this ink when I heard NPIAB.se is closing. That site has always been my source for 30ml Diamine inks. I'm sad to see it go. DIamine Marine is alight turquoise-green ink. It is a lot more green than blue. I enjoyed the bright shade. It pops right off the page. It behaves well and washing the ink out is a breeze. There is some shading visible even in a Germany EF nib. I enjoy this ink a lot.