# Fountain pen Diplomat Aero M — Diplomat brand, medium nib, black finish

**URL:** https://aio.lv/en/product--diplomat-d40301025--11779810
**Data updated:** 2026-03-08 22:50 (EET)
**Category:** Pens
**Manufacturer:** Diplomat
**Manufacturer code:** D40301025
**EAN:** 4009746011307
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 257.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 213.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--diplomat-d40301025--11779810

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Diplomat Aero is a fountain pen from Diplomat equipped with a medium (M) nib and a black exterior. Designed for everyday writing and professional correspondence, it supports standard fountain pen ink filling systems (cartridge or converter compatible with Diplomat models). The pen combines reliable nib performance with a classic shape suitable for note-taking, signing documents and gifting.

## Long description

The Diplomat Aero M fountain pen in black offers a balanced combination of functional design and everyday reliability. Equipped with a medium (M) nib, this pen is suitable for general-purpose writing, from taking notes to signing documents. Its classic silhouette and black finish provide a professional look while the nib geometry and feed deliver consistent ink flow. The Diplomat Aero accepts standard cartridge or converter filling systems compatible with Diplomat models, allowing flexible use of bottled inks or ready-made cartridges.
Advantages
The Diplomat Aero M provides steady line width and smooth glide thanks to its medium nib, making handwriting legible and consistent. The black finish and simple, ergonomic body ensure comfortable handling during extended writing sessions. Compatibility with both cartridges and converters offers practical ink options for daily use and easy maintenance. The pen’s construction emphasizes reliability and predictable performance suitable for routine office or personal tasks.
Suitable for
 Everyday note-taking and journaling
 Signing documents and correspondence
 Office and professional use
 Gifts for professionals or fountain pen enthusiasts
Key specifications
 Nib size: Medium (M)
 Finish: Black exterior
 Filling system: Compatible with standard cartridges and converters for Diplomat models
 Intended use: Daily writing, correspondence, document signing
How to use
Install a compatible ink cartridge or fit a converter and fill with fountain pen ink according to the converter instructions. Hold the pen at a natural writing angle so the nib’s slit faces the paper, and apply light pressure while writing; the medium nib provides a steady ink flow without heavy force. After use, cap the pen to prevent drying and store horizontally or nib-up if not used for extended periods. Clean the nib and feed periodically by flushing with water when changing ink colours or after prolonged storage.
Usage recommendations
For best results, use fountain pen-friendly, smooth paper to reduce feathering and bleed-through. If using a converter, rinse the system regularly and avoid leaving ink in the pen for long periods without use to maintain reliable performance.

## FAQ

### How much does the Fountain pen Diplomat Aero M cost, and is it available for purchase?

The price is 257.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 20.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Fountain pen Diplomat Aero M be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Diplomat products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Diplomat service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11779810/67173537_large.webp