Diamine
Inkvent
Inkvent Blue | 2019
Inkvent Red | 2021
Inkvent Green | 2022
Inkvent Purple | 2023
Inkvent Black | 2024
Inkvent Teal | 2025
Collaborations
Diamine × Art From The Heart
Diamine × Cult Pens
Diamine × Kong Girls
Diamine × Niche Pens/Pure Pens
Diamine × r/fountainpens
160th Anniversary
Tariff Teal
Flowers
Cornflour
Forever Ink
Amazonia
Aqua Surf
Blue Indigo
Butterscotch
Cherry Red
Coral Blaze
Honey Pot
Hot Magenta
Hyper Green
Passion Flower
Raven
Red Ochre
Skyline
Smoky Mauve
Solar Yellow
Tiger Lily
Iron Gall
Blue Black Register’s Ink
Music Collection
Handel
Shimmertastic
Golden Sands
Night Sky
Purple Pazzazz
Shimmering Seas
Standard Ink Line
Aqua Lagoon
Blaze Orange
Marine
Majestic Purple
Oxblood
Spring Green
Wild Strawberry