Diamine Inkvent Calendar is an advent calendar with a tiny (7ml) bottle of ink behind 24 windows, and a larger, 30ml, bottle of ink behind the 25th window. All the inks are limited edition, and only available through this calendar. You can read more about the calendar here.

It’s day 20 in the Diamine Inkvent calendar, and there are only 5 days left. No wonder the 20 is underscored.

Day 20’s ink is Diamine Midnight Hour, a dark, indigo ink with sheen. Wait, blue with a sheen? Haven’t we been here before? Yes we have. Take a look for yourself:

This is Diamine Midnight Hour. It’s a very saturated dark blue/indigo ink with a reddish-purple sheen.

If the sheen looks familiar it’s because it’s the same sheen you saw on day 15’s Diamine Festive Cheer. Diamine Festive Cheer is practically Diamine Midnight Hour only a shade lighter:

Then again, Diamine Festive Cheer is day 4’s Diamine Polar Glow with a tad less red in the base ink and a tad more red in the sheen.

There’s bound to be some degree of similarity between inks, considering Diamine had to create 25 unique inks for this calendar, and three similar royal blues are more useful than three similar yellows (and better behaving in pens), so I’m not complaining. It’s just an interesting little game to see just how close they came to creating three bottles of the same ink with different names (I’m looking at you Lamy). If you place these samples side by side you can tell them apart, but if you’d be buying ink in a store you’d probably end up picking just one bottle and not all three. My personal favourite is Diamine Polar Glow, followed by Diamine Festive Cheer, with Diamine Midnight Hour last.