Diamine Green Edition Serendipity is the perfect ink for any writing experience. This 50ml bottled ink has a shimmer/sheen finish that adds a unique sparkle to your writing. Professional ink enthusiasts will love the vivid color and reliable performance that this ink provides. The Diamine Green Edition Bottled Ink was originally released as part of their 2022 Inkvent Calendar of 25 inks. Contained in 50ml glass bottles this fountain pen ink is categorized under the Shimmer/Sheen category. A little about Diamine: Diamine is manufactured in England since 1864 and are water-based, acid-free, non-toxic as well as vegan-friendly.