Same Day Dispatch Same Day Dispatch on Engraved Pens
DeliveryWorldwide Delivery with Express Option
Feefo Reviews

TWSBI Diamond 50ml Ink Bottle - Silver

In stock
Worldwide Delivery with DHL. Express options available
See All Delivery options


Designed to fill your TWSBI Diamond fountain pen, this striking glass ink bottle will look at home on any desk. With a specially designed central metal band that connects directly to the TWSBI Diamond pen, a long tube dips into the ink and provides easy, effortless filling. For other fountain pens, the metal section can be removed and the bottle is supplied with a removable central reservoir, allowing you to fill your fountain pen down to the last drop of ink. Please note that this ink bottle is supplied empty. It will need to be filled with your favourite ink.

Key Features

  • Glass ink bottle with silver metal band
  • Supplied empty
  • TWSBI logo on bottle cap
  • Metal band used for filling TWSBI Diamond range is also compatible with standard international converters
  • Additional removable central reservoir to assist with filling other fountain pens
  • 50ml capacity
  • Dimensions: D 68mm x H 68mm (Height with metal band in place)
  • Weight (empty – with metal band): 155g
This is why people love it

Loads of good customer reviews submitted through feefo

Written on 25-Sep-2023
Written on 18-Nov-2022
cool looking ink well - good build quality
Written on 25-Apr-2022
Written on 04-Aug-2020

Delivery Information

All orders placed before 3pm Mon-Fri are despatched the same day (except on a bank holiday), even if your order has personalisation. Orders placed after 3pm, at the weekend or on a bank holiday are despatched next working day.

We deliver worldwide with a choice of standard (tracked post) and express (DHL air) delivery for most countries. Standard delivery to European countries is €6.50 and takes approx. 2-5 working days, whilst express is €20 and takes 1-2 days. To USA we offer DHL air 2-5 days as a standard service for $8. Delivery charges and estimated times vary for rest of world countries, please see our delivery page for more information.

Returns Information

Please return any unwanted items within 21 days of purchase. The item must still be in a re-saleable condition and returned with proof of purchase. Items that have been personalised cannot be returned unless they are faulty. Please email if you wish to return an item, and we can provide a returns label. The charge from Europe is €8 and £10 from most other major countries.

Should you receive a damaged or incorrectly dispatched item, please inform us within 7 days of receipt, so we can advise you on the return of the item. Call 0208 731 8610 or email A returns label will be provided free of charge

This is why people love it

Loads of good customer reviews submitted through feefo

  1. Written on 25-Sep-2023
  2. Written on 18-Nov-2022
    cool looking ink well - good build quality
  3. Written on 25-Apr-2022
  4. Written on 04-Aug-2020
View More Reviews