The Ultimate Guide to Diplomat Pen Refills

Are you unsure which refill you need for your Diplomat pen?

This ultimate Diplomat refill guide shows you every refill that Diplomat makes for their pens, which pens they fit, and alternatives from other brands where available.

The guide includes ballpoint pen refills, rollerball pen refills, fountain pen ink cartridges, and bottled ink.

1. About Diplomat

Established in 1922, Diplomat is a German pen manufacturer with a reputation for producing high-quality writing instruments.

Their knowledge and experience, combined with using the finest materials and traditional manufacturing techniques, have stood the test of time.

Their pens have beautiful finishes and are a tremendous writing experience.

Schmidt technologies, the German specialist manufacturer of pen refills and accessories, make and brand the refills for Diplomat.

Check out our Ultimate Guide to Schmidt Refills for more information about Schmidt.

2. Diplomat Ballpoint Pen Refills

Diplomat makes two refills for their ballpoint pens, both of which are G2 Parke Style refills, one has an oil-based ink, and the other is a hybrid ink.

2.1. Diplomat King Size Ballpoint Pen Refill

Diplomat King Size Ballpoint Pen Refill

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The Diplomat King Size ballpoint pen refill is a standard-size Parker Style G2 refill. The refill has a metal body with fine, medium, or broad tip sizes and black or blue ink.

The Diplomat King Size ballpoint pen refill is a G2 format refill, and you can use it in another manufacturer’s pen that takes this type of refill.

A G2 Parker Style refill from a different manufacturer will fit your Diplomat ballpoint pen.

Check out our Ultimate Guide to Parker Style Refills for more information about this type of refill.

Alternative Diplomat Ballpoint Pen Refills

If you would like a wider choice of colors, you can use a Schmidt P900 refill, as it is the same without Diplomat branding.

Schmidt P900 ballpoint pen refills are available in the following tip sizes and ink colors:

  • Fine Tip – black and blue ink colors.
  • Medium Tip – black, blue, red, green, magenta, turquoise, and violet ink colors.
  • Broad – black and blue ink colors.

Diplomat King Size Ballpoint Pen Refill Compatibility

The Diplomat King Size G2 ballpoint pen refill fits all diplomat ballpoint pens, including their current ranges, which are:

  • Diplomat Aero Ballpoint Pens
  • Diplomat Elox Ballpoint Pens
  • Diplomat Esteem Ballpoint Pens
  • Diplomat Excellence A 2 Ballpoint Pens
  • Diplomat Excellence A Plus Ballpoint Pens
  • Diplomat Magnum Ballpoint Pens
  • Diplomat Traveller Ballpoint Pens

2.2. Diplomat King Size EasyFlow Ballpoint Pen Refill

Diplomat Easyflow King Size Ballpoint Pen Refill

The Diplomat King Size Easyflow refill is a Parler Style G2 size refill with very smooth writing hybrid ink. The refill has a medium 1.0mm tip and a choice of black or blue ink.

You can leave the pen’s cap can be left off for a long time, and the ink of the refill will not dry out.

It is the same as a Schmidt EasyFLOW 9000M refill but without the Diplomat branding.

Diplomat King Size Easyflow Ballpoint Pen Refill Compatibility

The Diplomat King Size G2 Easyflow ballpoint pen refill fits all diplomat ballpoint pens, including their current ranges, which are:

  • Diplomat Aero Ballpoint Pens
  • Diplomat Elox Ballpoint Pens
  • Diplomat Esteem Ballpoint Pens
  • Diplomat Excellence A 2 Ballpoint Pens
  • Diplomat Excellence A Plus Ballpoint Pens
  • Diplomat Magnum Ballpoint Pens
  • Diplomat Traveller Ballpoint Pens

3. Diplomat Preassurised Pen Refills

Diplomat SpaceTec pens use a pressurized refill with the same writing qualities as a Fisher Space. They make two refills, one of which has the exact dimensions of a Fisher PR refill, and the other is a D1 refill.

3.1. Diplomat SpaceTec Gas-Pressurized King Size Refill

Diplomat SpaceTec Pressurized Pen Refill

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The Diplomat SpaceTec Gas-Pressurized King Size Refill is a metal refill with a stainless steel tip and black or blue ink.

The refill can write upside down and on greasy paper, just like the original pressurized Fisher Space Pen Refill.

It is the same as a Schmidt Megaline 4889M refill but without the Diplomat branding.

Diplomat SpaceTec Ballpoint Pen Refill Compatibility

The Diplomat SpaceTec Refill fits the following Diplomat SpaceTec ballpoint pens:

  • Diplomat A1 SpaceTec Ballpoint Pens
  • Diplomat Futura SpaceTec Ballpoint Pens
  • Diplomat O-Gravity SpaceTec Ballpoint Pens
  • Diplomat Pearl SpaceTec Ballpoint Pens
  • Diplomat Pocket SpaceTec Ballpoint Pens
  • Diplomat S1 SpaceTec Ballpoint Pens

The Diplomat SpaceTec Gas-Pressurized King Size Refill will fit Fisher Space Pens that take a Fisher PR1 refill as they are the same size.

You can fit a Fisher Space Pen Pr refill in your Diplomat SpaceTec pen, which is available in a broader range of ink colors and tip sizes.

  • Fisher PR1F Fine Refill 0.9mm – Blue Ink
  • Fisher PR2F Fine Refill 0.9mm – Red Ink
  • Fisher PR3F Fine Refill 0.9mm – Green Ink
  • Fisher PR4F Fine Refill 0.9mm – Black Ink
  • Fisher PR1 Medium Refill 1.1mm – Blue Ink
  • Fisher PR2 Medium Refill 1.1mm – Red Ink
  • Fisher PR3 Medium Refill 1.1mm – Green Ink
  • Fisher PR4 Medium Refill 1.1mm – Black Ink
  • Fisher PR5 Medium Refill 1.1mm – Burgandy Ink
  • Fisher PR6 Medium Refill 1.1mm – Purple ink
  • Fisher PR8 Medium Refill 1.1mm – Brown Ink
  • Fisher PR9 Medium Refill 1.1mm – Turquoise Ink
  • Fisher PRSL Medium Refill 1.1mm – Silver Ink
  • Fisher PR1B Bold Refill 1.3mm – Blue Ink
  • Fisher PR4B Bold Refill 1.3mm – Black Ink

Check out our Ultimate Guide to Fisher Space Pen Refills for more details about the Space Pen refills.

3.2. Diplomat SpaceTec Gas-Pressurized Short Refill

Diplomat SpaceTec Short Pressurized Pen Refill

The Diplomat SpaceTec Gas-Pressurized Short Refill is a D1-size pressurized refill with the same writing characteristics as other pressurized refills, such as the Fisher Space pen.

It is the same as a Schmidt Megaline 620M refill but without the Diplomat branding.

D1 refills are standard-size refills that many manufacturers use in compact and multi-function pens.

Check out our Ultimate Guide to D1 Refills for more information on this type of refill.

4. Diplomat Rollerball Pen Refills

Diplomat Rollerball Pen Refill

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Diplomat only makes one refill for their rollerball pens, the Diplomat Metal Rollerball Pen Refill, a standard size Euro Format rollerball pen refill.

It has a medium tip and a choice of black or blue ink.

Check out our Ultimate Guide to Euro Format Refills for more information.

It is the same as a Schmidt 5888 refill but without the Diplomat branding.

If you would like to try different colors or tip sizes, then Schmidt makes the following 5888 refills:

  • Fine 0.6mm Tip – Black, Blue, Red, Green
  • Medium 0.7mm Tip – Black, Blue, Red, Green, Magenta, Turquoise, Violet, Light-Green, Pink, Orange
  • Broad 1.0mm Tip – Black, Blue

Diplomat Metal Rollerball Pen Refill Compatibility

The Diplomat Metal Rollerball pen refill fits all diplomat rollerball pens, including their current ranges, which are:

  • Diplomat Aero Rollerball Pens
  • Diplomat Elox Rollerball Pens
  • Diplomat Esteem Rollerball Pens
  • Diplomat Excellence A Plus Rollerball Pens
  • Diplomat Excellence A2 Rollerball Pens
  • Diplomat Traveller Rollerball Pens
  • Diplomat Zepp Rollerball Pens

5. Diplomat Fountain Pen Refills

Diplomat fountain pens take short international standard-size ink cartridges and can be refilled with bottled ink via an ink converter.

5.1. Diplomat Standard Sized Ink Cartridges

Diplomat Fountain Pen Ink Cartridges

Diplomat makes fountain pen ink cartridges in two ink colors which are black and blue. The cartridges are the short international standard size available from many other manufacturers with many more color choices.

5.2. Diplomat Bottled Ink

Diiplomat Bottled Ink

There are fifteen vibrant colors of Diplomat bottled ink for fountain pens supplied in 30 ml glass bottles. It is suitable for use in any fountain pen with an ink converter.

The Diplomat bottled ink colors are :

  • Black
  • Burgandy
  • Caramel
  • Caribbean
  • Deep Blue
  • Deep Green
  • Lilac
  • Moss Green
  • Orange
  • Orchid
  • Pine Tree
  • Purple
  • Red
  • Royal Blue
  • Sepia Black

6. Where Can I Buy Cheap Diplomat Pen Refills?

If you want to save money and buy cheap Diplomat refills, then Amazon is probably as good as anywhere. Many other online stores will sell them, but they struggle to compete with Amazon on prices and postal costs.

Don’t forget you can save money on buying Diplomat refills by searching Amazon for one of the alternative Schmidt refills listed in this guide.

If you have a pen from a different manufacturer, check out Pen Brands Refill Guides, where there is a complete list of our in-depth refill guides for each manufacturer.

For more information about the different types of pen refills, check out our Ultimate Pen Refill Guide.

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Peter Warrior: Pen & Pencil Expert

With nearly a decade of experience in the pen industry, I successfully ran an online pen business for 9 years. My deep-rooted passion for pens and pencils led me to become a part-time blogger, where I've dedicated myself to sharing the wealth of knowledge I've amassed over the years. I'm a firm believer in the power of the written word, as echoed by Malcolm Forbes: "Putting pen to paper lights more fire than matches ever will." My expertise is not just rooted in business, but in the genuine appreciation and understanding of the art of writing instruments.

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