Emerald Green – Robert Oster Signature Ink

Robert Oster is new player in fountain pen ink market. He operates throughebay shop. The inks are sold in 50 ml PET bottles with a tightly secure twist cap. I don’t know who makes the inks for the shop, but the colors look interesting and fresh. At the moment Robert Oster inks are available in colors


  1. Aqua
  2. Australian Sky Blue
  3. Barossa Grape
  4. Black
  5. Blue Black
  6. Blue Denim
  7. Blue Night
  8. Blue Sea
  9. Bondi Blue
  10. Burgundy
  11. Chocolate
  12. Claret
  13. Copper Brown
  14. Deep Sea
  15. Emerald Green
  16. Ever Green
  17. Fire Engine Red
  18. Forest Green
  19. Graphite
  20. Green Green
  21. Green Lime
  22. Green Olive
  23. Jade
  24. Khakhi
  25. Light Green
  26. Marine
  27. Moss
  28. Orange
  29. Peach
  30. Pinky
  31. Red Orange
  32. Royal Red
  33. Ruby Red
  34. School Blue
  35. Spearmint
  36. Torquay
  37. Tranquility
  38. Turquoise
  39. Yellow Sunset

I received sixteen samples (marked in cursive) from well known ink enabler – Cyber6. Thank you Claudia :) You rock!




I’ll review them in following weeks. Let’s start with Emerald Green that’s described as unique green […] a beautiful representation of a multifaceted Emerald gem. Flows on glassy, dries on Emerald Green with gentle shading quality on product page. Well I can agree it flows really well. The ink is definitely wet and offers great flow. I haven’t observed any misbehaviour (no feathering, no bleedthrough, no clogging or causing hard starts). It’s not water resistant. Personally I dislike the color – in general I dislike such greens. If however you enjoy them and you expect ink to flow well and offer some nice shading, Emerald may be interesting choice for you.

Drops of ink on kitchen towel


Software ID


Tomoe River, Kaweco Classic Sport – eyedropper, B




Leuchtturm 1917, Kaweco Classic Sport – eyedropper, B








Poljet, Kawedco Skyline Sport, BB


Lyreco Budget, Kawedco Skyline Sport, BB






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