TWSBI Diamond Mini AL Silver Fountain Pen - Clear with silver aluminium trim
A compact demonstrator with clean feel
The TWSBI Diamond Mini White Rose Gold II takes the clarity of the Diamond Mini series, while adding silver aluminium accents for a sharper, more technical look. The transparent barrel keeps the pen visually alive with your ink choice, while the smaller proportions make it feel more personal and portable than the full size 580 models.
Built around TWSBI’s reliable piston filling system and fitted with a smooth stainless steel nib, this is a compact fountain pen that still feels complete in the hand.
What sets it apart
- Compact piston filler with high ink capacity for its size
-
Silver aluminium trim adds a cooler, more architectural feel
- Transparent barrel showcases ink colour and movement
- Posts securely to become a comfortable full length writer
- Shares the reliable stainless steel nib from Eco
Feel in the hand
The Diamond Mini AL Silver feels precise and controlled. Unposted, it stays compact and easy to carry. Posted, it has the balance and stability of a full size writer.
The aluminium trim sharpens the overall feel, making the pen seem more technical compared to warmer or softer Diamond colour variants.
Who it’s for
- Writers wanting a compact pen without sacrificing capacity
- Users with smaller hands who find full size pens oversized
-
People who prefer cooler silver accents over warmer trims
- Travellers and everyday carry users
-
Fans of minimal, engineered design language
Not for
- Users who prefer large, heavier pens
- Writers wanting cartridge/converter convenience
- People who dislike posting smaller pens
- Anyone wanting a completely maintenance free writing system
Practical tips
- The Diamond Mini is designed to post securely by threading onto the back of the barrel. Most users will prefer writing with it posted for full length balance.
FAQs
Is this beginner-friendly?
Yes. The piston system is straightforward to use and the pen box includes filling instructions.
How much ink does it hold?
The chamber holds approximately 1.3mL of ink, which is still significantly more than most converter pens despite the smaller body.
How does it compare to the Diamond 580?
The Mini is shorter and more portable, with slightly lower capacity. Posted, it becomes close to a full size writer. The 580 feels larger in the hand and holds more ink.
Does the cap post securely?
Yes. The cap threads onto the back of the pen for a very stable posted writing experience.
Can you change nibs?
Yes. The nib unit is removable and replaceable.
Does it come with ink?
No. Bottled fountain pen ink is required.
Is it fragile?
Not with normal use. Avoid over tightening the cap and minimise unnecessary disassembly.
How do you clean it?
Routine cleaning only requires flushing water through the nib and barrel. Full disassembly is only needed occasionally for piston lubrication.
What’s included
- TWSBI Diamond Mini AL Silver Fountain Pen
- Wrench
- Silicone grease
- Presentation box
- Instruction leaflet
- Free nib tuning from LarryPOST
Ink pairing suggestions
- Blue-black inks for a clean professional look
- Grey and graphite inks for a monochrome setup
- Bright inks to contrast against the neutral silver trim
Build your practice
- Use with the TWSBI Diamond Ink Well for cleaner filling
- Replacement Diamond Mini nibs for exploring line widths
- De Atramentis Document inks for permanence
Specifications
- Brand:Â TWSBI
- Brand series: Diamond Mini
- Launch:Â Sept 2016
- Origin:Â Taiwan
- Nib:Â Stainless steel
- Nib sizes:Â EF, F, M, B, 1.1 stub
- Filling system: Piston filler (approx. 1.3mL)
- Body:Â Transparent polycarbonate
- Trim:Â Stainless steel
- Cap:Â Twist
- Grip:Â Approx. 9mm
- Diameter:Â approx. 12mm
- Length:Â approx. 117mm (capped)
- Length:Â approx. 138mm (posted)
- Weight:Â Approx. 20g
- Comparable size:Â Kaweco Sport, Pilot Prera
A compact demonstrator with a cooler, more technical feel, built for writers who want portability without giving up the piston filling experience.
