Monteverde Sapphire is a vibrant blue. It shades beautifully and has a wet flow. There is the tiniest bit of sheen in the darker areas where the ink had pooled, it is not obvious unless you are looking really hard.
I managed to get a LEUCHTTURM1917 planner for a cheap price at the end of the year when shops are clearing the unsold 2020 planners. It used the same 80gsm paper found in LEUCHTTURM1917 notebooks so I decided to use it for writing samples.
This is written with a TWSBI ECO-T medium nib.
Disclaimer: This ink was purchased by me and all opinions/photos are my own. This post was not sponsored.