Leonardo Poliedrica Desiderario Review: A Faceted Limited Edition Worth a Look

Introduction

Over the past few years, Stilo & Stellay has built a reputation for limited edition retailer exclusives with a consistently high hit rate, and the latest Leonardo collaboration continues that streak. This time the retailer has turned to a Leonardo model that has not been part of its previous lineup: the Poliedrica, a clipless, faceted pen that lives up to its name, which means multifaceted in Italian.

What makes this release notable is the material. The Poliedrica Desiderario reuses a resin from one of Stilo & Stellay’s popular earlier collaborations, giving fans of that starry look a second chance to pick it up.

Design and the Desiderario Material

The full name is the Leonardo Stilo & Stellay Poliedrica Desiderario, and the material is the real star. The name Desiderario derives from a Latin root meaning to feel the absence of the stars, poetically recalling the bond between aspirations and dreams and the starry sky. It is the same family of material used previously on the Radius model, though this version leans a little more toward white swirls. As with swirl resins generally, expect some variance from pen to pen, which many collectors consider part of the charm.

The faceted shape is the other headline feature. The cap ends in a triangular profile with squared-off edges, transitions into a rounded section through the middle, then tapers back down to the triangular finial at the rear of the barrel. Even just holding the pen unposted, the facets pinch naturally between the fingers in a way that feels genuinely ergonomic rather than decorative.

Build Quality and Cap Mechanism

The cap twists off with a single rotation, and Leonardo has equipped it with triple threads, meaning three separate entry points where the cap can engage. Whichever entry point you use, the cap and barrel land in perfect alignment with the triangular facets, which is a small detail that shows real care in the engineering.

Near the end of the cap you will find the Leonardo and Stilo & Stellay branding along with the pen’s limited edition number; this example is number 11. Since the pen is clipless, the Leonardo medallion that normally attaches to a clip is instead included separately in the box.

The pen arrives in the standard Leonardo box with a custom sleeve for the limited edition, along with a use and care guide. It is a nicely presented package for a numbered release.

Grip, Filling, and Size

The section is concave and begins with a gentle flare, then transitions into the cap threads with a step up to the barrel that is angled rather than steep. In practice the grip is very comfortable, with decent girth, and the rounded transition does not interfere even if you tend to grip your pens a little further back. The faceted rear section, unfortunately, does not act as a roll stop, so the pen will roll if you set it down uncapped. It is also not designed to be posted, as the triangular cap does not fit well on the barrel, but most will prefer the look unposted anyway.

This is a cartridge converter pen that accepts standard international cartridges, and a converter with a metal housing is included. It would not be a recommended candidate for an eyedopper conversion. In terms of size, the Poliedrica is a decent length, sitting slightly larger than the Leonardo Momento Zero, and it sits comfortably alongside pens like the Pilot Vanishing Point, Visconti Opera Air, and Lamy 2000 in a comparison lineup.

Nib Options and Custom Grinds

The pen uses a number six nib, and Leonardo’s nib stamping looks sharp as always. The Poliedrica is available in a wide variety of standard nib choices, but the more interesting option is that you can add unique nibs from Stilo & Stellay’s Grind Your Writing program. Through this program, custom nibs are available from renowned nib masters, including stacked nibs from CY of Tokyo Inklings and Jose Manuel of Nib Lab, along with custom grinds from other nib specialists. The reviewed unit carried a standard broad stainless steel nib.

Writing Performance

The broad steel nib is fairly wet and juicy, with very generous ink flow, though you should not expect much line variation. Reverse writing is surprisingly smooth, laying down a line closer to fine or even medium. During fast writing, the plastic feed keeps up very well with no signs of starvation.

Paired here with Diamine 1864 Blue Black, a rich blue-black that was among the reviewer’s first non-black ink purchases, the nib delivers a satisfying, saturated line that suits the broad point well. If you prefer a wet, smooth writer for everyday notes, this setup will not disappoint.

Things to Consider Before Buying

A few trade-offs are worth weighing. The faceted body will roll if set down, so a careful spot on the desk is needed. Posting is not practical. And the material’s swirl pattern means each pen looks slightly different from the photos, which can cut both ways depending on your expectations.

On pricing, the steel nib version runs approximately €229, while the 14k gold nib version is approximately $529. Both figures are a little higher than some previous Stilo & Stellay retailer exclusive Leonardos, but this time the retailer is offering prepaid customs and import fees for US customers, so the checkout price is the total price, a welcome change given the unpredictability of international shipping charges lately.

Buying Advice

If you are interested, act sooner rather than later. Stilo & Stellay’s limited edition pens have a strong tendency to sell out quickly, and a numbered reissue of a popular material is exactly the kind of release that disappears fast. For collectors who missed the Radius in Desiderario, or anyone drawn to a comfortable faceted pen with excellent nib customization options, this is an easy recommendation. If you want a bit of nib flair, the custom grinds from the Grind Your Writing program are worth a serious look.

Conclusion

The Leonardo Poliedrica Desiderario is a well-performing, genuinely interesting pen: a comfortable faceted body, a clever triple-thread cap that stays perfectly aligned, a wet and reliable broad nib, and a poetic starry resin with real charm. The roll risk and lack of posting are minor quibbles in an otherwise strong limited edition. For fountain pen fans, especially Leonardo collectors, this one deserves a spot on the shortlist.