Today's ink is Robert Oster Emerald. I've been obsessed with red, green, and shimmer inks for the holidays, and I think this one is a decent Christmas green. I purchased my sample of ink from Vanness Pens.
Emerald is a medium green with some shading and sheen.
The ink drops show off it's beautiful dark pink sheen.
Dry time: 42 seconds
Water resistance: Low
Show through: Medium
On 20 pound copy paper there was a little bit of feathering but other than that the ink did really well.
Ink swabs for comparison, left to right (top to bottom for mobile RSS): Robert Oster Green Diamond, Robert Oster Emerald, and Robert Oster Spearmint. Click here to see the Robert Oster inks together. Green Diamond has just a little bit more blue in it than Emerald does, and Spearmint is much darker than both of them.
I used a medium Pelikan M800 Renaissance Brown on Tomoe River paper. The ink felt average in flow.
I have fallen in love with this nib. I want this pen in every color.
Overall, it's a solid performer, however the dry time is a little long. Robert Oster has so many good greens, which is great, but after a while the inks aren't different enough to need one of every single color.
Disclaimer: I purchased this ink myself and all photos and opinions are my own. There are no affiliate links on this page.