Diamine Blue Edition is a series of ink introduced in Diamine's 2019 Inkvent calendar -- an ink sample advent calendar with total of 25 samples. In 2020, Diamine decided to release the 25 colors as regular colors.
- Midnight Hour
- Available in Blue Peppermint, Elf, Festive Cheer, Gingerbread, Gold Star, Holly, Jack Frost, Midnight Hour, Noel, Nutcracker, Polar Glow, Roasted Chestnut, Seasons Greetings, Snow Storm, Solstice, Triple Chocolate, Winter Miracle
- Available as Ink Sample - Diamine Blue Edition