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TWSBI Diamond 580 Rose Gold II Fountain Pen - Clear / White with rose gold trim

Original price $149.95 - Original price $149.95
Original price $149.95
$149.95
$149.95 - $149.95
Current price $149.95

Clean, warm, and intentionally refined

The TWSBI Diamond 580 Rose Gold II White combines a crystal clear demonstrator body with an opaque white cap and warm rose gold trim, creating one of the cleanest and most elegant versions of the Diamond 580 series. The white softens the technical feel of the demonstrator design, while the rose gold adds warmth and depth without becoming flashy.

Built on the proven Diamond 580 platform, it combines high ink capacity, a smooth wet stainless steel nib, and a more refined writing experience than most entry level fountain pens.

What sets it apart

  • White and rose gold colour way feels softer and more refined
  • Crystal clear barrel shows ink movement and level
  • Reliable piston filling system with large ink capacity
  • Faceted Diamond barrel design prevents roll
  • Smooth stainless steel nib with free tuning option

Feel in the hand

The White Rose Gold II feels precise without becoming cold. The visible mechanics make fountain pens easier to understand, while the softer colours remove some of the industrial feel often associated with demonstrators. It feels calming, clean, and easy to settle into for longer writing sessions.

Who it’s for

  • Writers upgrading from entry level fountain pens
  • Users wanting a cleaner, softer demonstrator aesthetic
  • People who enjoy matching inks to the mood of the pen
  • Writers wanting high ink capacity for everyday use
  • Anyone building a more intentional writing setup

Not for

  • Users who prefer darker or fully opaque designs
  • Writers wanting a very lightweight pen
  • Users who dislike maintaining piston fillers
  • Anyone wanting cartridge/converter system simplicity

Practical tips

  • Routine cleaning only requires flushing water through the pen several times.

FAQs

Is this beginner friendly?

Yes. The Diamond 580 is one of the easiest piston filling fountain pens to learn and maintain. Filling instructions are included.

How much ink does it hold?

Approximately 1.9mL, which is around 2-3 times the capacity of most cartridge or converter fountain pens.

How does it compare to the TWSBI Eco?

The Diamond 580 feels more refined, with a more comfortable grip, screw-in nib units, and a more developed overall design. Eco is the simpler and more economical version.

What’s the difference between 580, 580AL and 580ALR?

The 580 is the base Diamond model. The AL versions add aluminium parts, while ALR models also include ribbing on the grip section.

Can you change nibs?

Yes. Rose Gold II replacement nibs are available separately.

Does the rose gold trim wear off?

With normal use, the plating holds up well. Like all plated finishes, slight wear may develop over years of heavy use.

Does it come with ink?

No. Bottled fountain pen ink is required.

Is it fragile?

Not with normal care. Avoid over-tightening the cap and minimise unnecessary disassembly.

What’s included

  • TWSBI Diamond 580 Rose Gold II Fountain Pen
  • Wrench
  • Silicone grease
  • Presentation box
  • Instruction leaflet
  • Free nib tuning from LarryPOST

Ink pairing suggestions

  • Warm browns and sepias
  • Dusty pinks and muted burgundies
  • Grey inks to create a clean and minimal look

Build your practice

Specifications

  • Brand: TWSBI
  • Brand series: Diamond 580
  • Launch: April 2022
  • Origin: Taiwan
  • Nib: Stainless steel
  • Nib sizes: EF, F, M, B, 1.1 stub
  • Filling system: Piston filler (1.9mL)
  • Body: Transparent polycarbonate
  • Trim: Rose-gold coloured plated stainless steel
  • Cap: Twist
  • Grip: approx. 10mm
  • Diametre: approx. 13mm
  • Length: approx. 142mm (capped)
  • Weight: approx. 29g (capped)
  • Comparable size: Pilot Custom 74, Lamy Studio

A demonstrator that makes everyday writing feel cleaner, calmer, and more personal.

Nib Size: Extra Fine

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