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SKU
C-M7441210

TWSBI Diamond 580 AL R Caribbean with Onyx Fountain Pen

£78.00
In stock
See All Delivery options

The TWSBI Diamond 580 AL R Fountain Pen Caribbean with Onyx matches superior craftsmanship with distinctive design, creating a writing instrument every pen aficionado will covet. The striking diamond faceted barrel prevents your pen from rolling off the table, whilst the transparent construction allows you to see the piston fill workings and remaining ink levels. Sitting comfortably in the hand, this durable, lightweight fountain pen is finished with a screw-close cap and rubber O-ring to prevent leaks and drying. Match the Diamond 580 with the TWSBI Diamond Ink Bottle for an easy, fuss free filling experience.


All TWSBI fountain pens can be disassembled for cleaning and maintenance. TWSBI includes the tools to do so but recommend this is only carried out by experienced fountain pen users. This should only be carried out as part of long-term servicing of the pen; it will not need to be done straight away. All disassembly is carried out at the owner’s risk!

Key Features

  • Transparent body with turquoise blue cap and piston mechanism tip
  • High shine onyx black trim and clip
  • Polycarbonate construction creates scratch resistant, resilient and crystal-clear finish
  • Diamond faceted barrel
  • Twist action piston fill mechanism
  • Stainless steel nib with intricate TWSBI logo and detailing
  • Screw close cap
  • Rubber O-ring prevents leakage and drying
  • Gently tapered polished navy blue aluminium grip section
  • Piston mechanism finished in polished anodised navy blue aluminium
  • TWSBI logo button on end cap
  • TWSBI presentation box
  • Lifetime manufacturer warranty
  • Dimensions (Closed): L 141mm x D 13.5mm
  • Dimensions (Posted): L 172mm x D 13.5mm
  • Weight: 31g

Delivery Information

Christmas Delivery: Order by 3pm on following dates to receive your order in time; Standard Tracked Weds 18 Dec, Premium Tracked Fri 20 Dec, Special/Next Working Day Mon 23 Dec

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.

UK: We use a Royal Mail tracked service. Standard delivery is free (£2 charge for orders under £10) and takes 2 to 5 working days, Premium is £3 and takes 1 to 2 working days. Next working day is £6 and is delivered by 4pm (requires a signature).

International: We deliver worldwide with a standard and express service. Please visit our international website

Returns Information

Please return any unwanted items within 21 days of purchase to be eligible for an exchange/refund. Items purchased for Christmas can be returned by 13th Jan. 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.

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 info@penheaven.co.uk. If a faulty or incorrect item is returned, we will refund your postage up to the cost of 1st class recorded Royal Mail. If you are sending items from abroad, please call us for a delivery quote