Leonardo Momento Zero Grande Pura Arancia Fiamante Review: A Juicy Demonstrator With Real Ink Capacity

Introduction

The Leonardo Momento Zero Grande Pura in Arancia Fiamante is a large, translucent piston filler that manages to feel both playful and genuinely practical. This gold trim version pairs a satin orange demonstrator body with warm metal accents, and the whole thing is built around one of the most appealing features in modern fountain pens: a true piston with a generous 1.5 ml ink capacity.

This is a fun pen, but it is not a novelty. The Pura keeps the mechanical layout of the regular Momento Zero Grande line, adds a translucent body so you can actually watch the pen fill, and ships with a steel nib that keeps the price in sensible territory. Here is how it performed during extended handling and writing.

Design and Finish: Arancia Fiamante

The finish name translates roughly to “flaming orange”, and it fits. The material looks sweet, sparkly and slightly juicy, and the translucency is the star: it is not fully transparent, but you can see the nib inside the barrel, watch ink drawn up during a fill, and spot the occasional tiny air bubble. Holding it up to the light reveals exactly how much ink is left.

The satin polish gives the pen the tiniest bit of texture, which makes it noticeably nice to the touch. If orange is too happy for your taste, the Pura line is also offered in other colors, and beyond gold trim there are silver and ruthenium trim options to choose from.

Small details hold up well too. The cone-shaped cap finial, a clip with a small wheel that works smoothly, and the three trim rings give the pen a coherent, tapering silhouette. The barrel carries an engraved “Leonardo Officina Italiana” marking, and the cap unscrews to reveal how nicely translucent the material really is.

Size, Comfort and Handling

Momento Zero Grande pens are not small, and the Pura is no exception. Laid next to a Pilot Metropolitan, the size difference is obvious. The section uses the typical Leonardo tapering shape, narrowing gradually and then staying straight, with a ring at the end.

Posted or unposted, the pen is very comfortable for extended writing sessions. One practical note: the metal ring at the end of the section means you should dry that area after cleaning so it does not corrode. The piston knob is positioned where a turning knob belongs, and you can see the piston mechanism working through the translucent body, which adds a little mechanical charm to every fill.

Writing Performance: The Steel Medium Nib

The review unit came with a number six steel nib in medium, and it is a pleasant writer. Ink flow runs on the drier end of things rather than being a gusher, helped by an ebonite feed, but there were no issues with flow consistency during writing tests.

As a rigid steel nib, it produces a clean, consistent line without meaningful line variation, and reverse writing becomes noticeably scratchier and less pleasant. If you want flex or more character, that is exactly what the upgrade options are for, covered below.

Paired with a warm orange ink, the medium steel nib laid down smooth, wet-looking lines with no skipping. For everyday writing, the steel nib needs no apology: it does the job comfortably and reliably.

Pricing and Nib Upgrades

The pen costs 243.80 euros excluding VAT, which includes a fine, medium, broad or stub steel nib. That is a fair price for a large Italian piston filler with this finish quality.

The upgrade path is where the numbers get dramatic. Moving to a 14k nib in extra fine, fine, medium, broad or stub adds 164 euros and change, pushing the pen past the 400 euro mark. Choosing a number eight gold nib instead adds 301.65 euros, which means the nib alone costs more than the entire pen. A gold number eight with a 1.3 mm stub would look stunning on a pen this size, but the combined total lands in the 550 euro range.

To be fair, the humble steel medium nib writes absolutely fine, and the number six nib does not look horribly out of place even if it reads a touch small on such a large body. For most buyers, the steel nib configuration is the sweet spot; the gold upgrades are aesthetic and performance choices you pay a real premium for.

Things to Consider Before Buying

The Pura solves a long-standing complaint with Leonardo’s piston-filled Grande models: previous versions lacked an ink window, so you could not see how much ink was left. The translucent body fixes that completely, and the 1.5 ml capacity means you will rarely need to check often anyway.

Points worth weighing are the upgrade pricing structure and the personal question of whether a bright orange demonstrator fits your taste. Everything else, from the satin texture to the clip action to the fill mechanism, worked without issue during testing.

Buying Advice

If you want a large piston filler with genuine ink capacity, a satisfying translucent look, and a reliable steel nib, this pen earns its price comfortably. Buy the steel version and enjoy it. Consider the 14k or number eight gold upgrades only if a gold nib is genuinely important to you, and go in knowing the surcharge more than doubles the base price. For everyone else, the standard configuration is a very complete pen as it ships.

Conclusion

The Momento Zero Grande Pura Arancia Fiamante is a well-executed, cheerful demonstrator that fixes the ink-window problem of its predecessors and writes pleasantly out of the box. The gold nib upgrade pricing is steep, but the steel nib version stands on its own as a comfortable, high-capacity, good-looking pen that is easy to recommend.