{"title":"Diamine Ink Cartridges","description":"The Diamine Ink Cartridges offer convenient and quality ink solutions for on-the-go writing enthusiasts. Crafted with precision, these cartridges provide a seamless and reliable ink supply, catering to the needs of discerning writers using fountain pens. Diamine Ink Cartridges ensure a smooth and efficient writing experience, making them a practical choice for those who value both convenience and performance in their writing instruments.","products":[{"product_id":"diamine-chocolate-brown-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Chocolate Brown","description":"\u003cp\u003eDiamine Ink Cartridges Pack of 18 - Chocolate Brown brings a warm, cocoa-toned hue to everyday notes and longer journaling sessions. The familiar Diamine flow delivers reliable starts and clean lines, with a natural touch of shading that keeps text lively and readable across a range of papers.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eChocolate Brown lands in a classic, mid-to-dark brown that reads comfortably on the page without appearing black. Expect smooth, consistent ink delivery and attractive shading with broader or wetter nibs. This is a dye-based, water-soluble ink, so it is not waterproof and cleans easily from pens and converters.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Use\u003c\/h2\u003e\u003cp\u003eThese standard international short cartridges fit most cartridge-converter fountain pens that accept the universal format, making them a convenient option at home, work, or on the go. They are not compatible with proprietary systems such as Lamy or Parker. The compact pack of 18 keeps refills on hand for weeks of steady writing.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eColor: Chocolate Brown\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based, dye-based fountain pen ink\u003c\/li\u003e\n\u003cli\u003eFormat: Standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges per pack\u003c\/li\u003e\n\u003cli\u003eWater resistance: Not waterproof\u003c\/li\u003e\n\u003cli\u003eCompatibility: Fits most pens using standard international cartridges; not compatible with proprietary systems such as Lamy or Parker\u003c\/li\u003e\n\u003cli\u003eUse case: Everyday writing, notes, journaling\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293476208915,"sku":"8057","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Chocolate-Brown-Ink-Cartridges.jpg?v=1697564365"},{"product_id":"diamine-emerald-green-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Emerald Green","description":"\u003cp\u003eBring a lively pop of color to everyday notes and journals with Diamine Emerald Green ink cartridges. This convenient 18-pack delivers the brand's smooth, dependable flow in a rich, classic green that reads clearly on the page without overwhelming your handwriting.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Convenience\u003c\/h2\u003e\u003cp\u003eThe Emerald Green tone offers balanced saturation and a clean, legible hue suitable for work, study, or correspondence. Pre-filled cartridges keep your fountain pen ready to write, minimizing mess and simplifying refills at home, the office, or on the go.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Use\u003c\/h2\u003e\u003cp\u003eThese standard international short cartridges fit most fountain pens designed for the widely used format. The water-based, dye formula starts easily, keeps up with quick notes, and rinses out with normal pen maintenance. Made by Diamine in the UK, a maker trusted by writers and artists for generations.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInk color: Emerald Green\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based dye fountain pen ink\u003c\/li\u003e\n\u003cli\u003eCartridge format: Standard international short\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges\u003c\/li\u003e\n\u003cli\u003eCompatibility: Most pens that accept standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eOrigin: United Kingdom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293476569363,"sku":"8004","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Emerald-Green-Ink-Cartridges.jpg?v=1697564309"},{"product_id":"diamine-green-umber-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Green Umber","description":"\u003ch2\u003eEveryday ease with a refined, earthy hue\u003c\/h2\u003e\u003cp\u003eDiamine Ink Cartridges Pack of 18 - Green Umber brings a grounded, olive-brown green to casual notes and daily journaling. The shade sits comfortably between green and brown, offering readable contrast on the page with a natural, understated character that suits work planners, letters, and field notebooks alike.\u003c\/p\u003e\u003ch3\u003eColor and performance\u003c\/h3\u003e\u003cp\u003eThis water-based dye ink delivers reliable flow and tidy drying behavior across a wide range of fountain pen nibs. Green Umber shows gentle shading on suitable papers, adding quiet depth without overwhelming text. It cleans up easily with water, making cartridge changes straightforward for regular rotation.\u003c\/p\u003e\u003ch3\u003eCompatibility and convenience\u003c\/h3\u003e\u003cp\u003eThe pack includes 18 standard international short cartridges, ready to drop into most fountain pens that accept this format. It is a simple, travel-friendly way to keep a favorite color on hand without bottles, converters, or extra setup.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003cli\u003eColor: Green Umber (olive-brown green)\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based dye fountain pen ink\u003c\/li\u003e\n\u003cli\u003eFormat: Standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges per pack\u003c\/li\u003e\n\u003cli\u003eCompatibility: Fountain pens that accept standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eCountry of origin: United Kingdom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293476634899,"sku":"8039","price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Green-Umber-Ink-Cartridges.jpg?v=1697564300"},{"product_id":"diamine-grey-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Grey","description":"\u003cp\u003eDiamine Ink Cartridges Pack of 18 - Grey delivers an easy, no-mess way to keep your favorite fountain pens ready to write. This cool, neutral grey reads cleanly on the page, offering a professional tone for notes, annotations, and everyday journaling without the harshness of black.\u003c\/p\u003e\u003ch2\u003eColor and Performance\u003c\/h2\u003e\u003cp\u003eKnown for smooth flow and dependable behavior, Diamine's water-based dye formula helps most pens start quickly and write consistently. The grey tone remains legible across a range of papers, with understated character that can show subtle shading depending on nib and paper.\u003c\/p\u003e\u003ch2\u003eConvenience and Compatibility\u003c\/h2\u003e\u003cp\u003eThese are standard international short cartridges, making them simple to swap at home, in class, or on the go. They fit a wide variety of cartridge\/converter fountain pens that accept the standard international short format. Not compatible with proprietary cartridge systems. When in doubt, check your pen's specifications.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eInk color: Grey\u003c\/li\u003e\n\u003cli\u003eFormat: Standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges per pack\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based dye fountain pen ink\u003c\/li\u003e\n\u003cli\u003eOrigin: Made in the United Kingdom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293476667667,"sku":"8014","price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Grey-Ink-Cartridges.jpg?v=1697564291"},{"product_id":"diamine-imperial-purple-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Imperial Purple","description":"\u003cp\u003eDiamine Imperial Purple ink cartridges bring a rich, regal purple to everyday notes and journals. This pack of 18 standard international short cartridges makes refilling quick and clean, with reliable performance that suits both work and personal writing.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eImperial Purple is a saturated royal hue with impressive clarity and gentle shading on quality paper. The water-based fountain pen formula offers smooth, consistent flow and well-behaved lines for daily use.\u003c\/p\u003e\u003ch2\u003eCartridge Convenience\u003c\/h2\u003e\u003cp\u003eEach cartridge fits any fountain pen that accepts standard international short cartridges, offering travel-ready portability and tidy, mess-free swaps. Keep a few in your case for easy color changes without bottles or converters.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eColor: Imperial Purple (deep royal purple)\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based dye fountain pen ink\u003c\/li\u003e\n\u003cli\u003eFormat: Standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges per box\u003c\/li\u003e\n\u003cli\u003eCompatibility: Pens that accept standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293476765971,"sku":"8005","price":10.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Imperial-Purple-Ink-Cartridges.jpg?v=1697564260"},{"product_id":"diamine-marine-blue-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Marine Blue","description":"\u003cp\u003eDiamine Ink Cartridges Pack of 18 - Marine Blue delivers an easy, no-mess way to keep your fountain pen ready to write. The vibrant marine-toned blue offers clear, readable contrast on the page with a lively character suited to notes, journaling, and correspondence.\u003c\/p\u003e\u003ch2\u003eCraftsmanship \u0026amp; Color\u003c\/h2\u003e\u003cp\u003eMarine Blue is a fresh, ocean-inspired shade that stays crisp and legible without feeling overly dark. Diamine's water-based dye formula is known for clean, consistent flow and dependable startup, helping your pen perform smoothly across a wide range of papers.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Ease\u003c\/h2\u003e\u003cp\u003eThese cartridges use the standard international short format for broad compatibility and effortless swapping. Keep a few in your bag or desk drawer for quick refills and low-maintenance daily writing. The 18-pack offers excellent value and plenty of ink on hand for regular use.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eColor: Marine Blue\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based dye\u003c\/li\u003e\n\u003cli\u003eCartridge format: Standard international short\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges per pack\u003c\/li\u003e\n\u003cli\u003eCompatibility: Fits most fountain pens that accept standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293477159187,"sku":"8066","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Marine-Blue-Ink-Cartridges.jpg?v=1697564232"},{"product_id":"diamine-maroon-red-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Maroon Red","description":"\u003cp\u003eA deep, wine-tinged burgundy with everyday practicality, Diamine Maroon Red lends warmth and legibility to notes, journals, and correspondence. The Diamine Ink Cartridges Pack of 18 - Maroon Red keeps your favorite fountain pens ready with a reliable, mess-free supply in a compact, travel-friendly format.\u003c\/p\u003e\u003ch3\u003eColor \u0026amp; Convenience\u003c\/h3\u003e\u003cp\u003eMaroon Red sits in a classic burgundy register: rich enough to stand out, refined enough for professional use. The sealed cartridges make swapping colors quick and clean at home or on the go, with consistent, repeatable color from the first page to the last.\u003c\/p\u003e\u003ch3\u003eWriting Performance\u003c\/h3\u003e\u003cp\u003eThis dye-based, water-soluble ink is formulated for smooth flow and dependable start-up, supporting crisp lines and steady performance across a wide range of paper types. Expect readable contrast without harshness, moderate dry times, and easy cleanup when it is time to change hues.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eColor: Maroon Red (deep burgundy)\u003c\/li\u003e\n\u003cli\u003eInk type: water-based, dye-based fountain pen ink\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 disposable ink cartridges\u003c\/li\u003e\n\u003cli\u003eCartridge format: international short (standard) size\u003c\/li\u003e\n\u003cli\u003eCompatibility: fits most fountain pens designed for international short cartridges\u003c\/li\u003e\n\u003cli\u003ePackaging: compact, travel-friendly box\u003c\/li\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293477355795,"sku":"8008","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Maroon-Red-Ink-Cartridges.jpg?v=1697564225"},{"product_id":"diamine-matador-red-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Matador","description":"\u003cp\u003eThe Diamine Ink Cartridges Pack of 18 - Matador delivers a confident, vivid red in a convenient, travel-ready format. Ready to load and go, these cartridges keep your favorite everyday writer topped up at home, at the office, or on the move.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eMatador is a lively, saturated red with strong visibility on both white and cream papers. Diamine's water-based, dye formula is known for clean performance and dependable flow, helping pens start easily and write consistently across quick notes, edits, and journal entries.\u003c\/p\u003e\u003ch2\u003eEasy Compatibility\u003c\/h2\u003e\u003cp\u003eThese standard international short cartridges fit a wide range of fountain pens. The compact size is ideal for everyday carry; simply click in a fresh cartridge when ink runs low. With 18 in the box, you are set for weeks of uninterrupted writing.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003cli\u003eColor: Matador (red)\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based, dye ink\u003c\/li\u003e\n\u003cli\u003eCartridge format: Standard international short\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges\u003c\/li\u003e\n\u003cli\u003eCompatibility: Fits most pens that accept standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eCountry of origin: United Kingdom\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293477814547,"sku":"8094","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Matador-Red-Ink-Cartridges.jpg?v=1697564216"},{"product_id":"diamine-mediterranean-blue-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Mediterranean Blue","description":"\u003cp\u003eThe Diamine Ink Cartridges Pack of 18 - Mediterranean Blue brings a crisp, sunlit blue to everyday notes and journaling with the convenience of clean, no-mess cartridges. This balanced shade sits comfortably between bright and classic, making it an easy daily choice for work, study, and correspondence.\u003c\/p\u003e\u003ch2\u003eDesign \u0026amp; Compatibility\u003c\/h2\u003e\u003cp\u003eEach cartridge follows the standard international short format for broad compatibility with many modern and vintage fountain pens. The 18-count box is compact and travel-ready, offering a reliable way to swap colors or refresh your pen without bottles or converters. Cartridges are securely sealed to help maintain freshness until use.\u003c\/p\u003e\u003ch2\u003eWriting Experience\u003c\/h2\u003e\u003cp\u003eMediterranean Blue lays down a clear, vivid line with the smooth, consistent flow that has made Diamine a favorite among writers. Expect approachable saturation and readable contrast on most papers, with shading potential depending on nib width and paper choice.\u003c\/p\u003e\u003ch2\u003eAbout Diamine\u003c\/h2\u003e\u003cp\u003eDiamine has produced fountain pen inks since 1864 in Liverpool, UK, earning the trust of enthusiasts for dependable performance and a wide, well-curated palette.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFormat: Pack of 18 fountain pen ink cartridges\u003c\/li\u003e\n\u003cli\u003eColor: Mediterranean Blue\u003c\/li\u003e\n\u003cli\u003eCartridge type: Standard International Short\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based, dye-based fountain pen ink\u003c\/li\u003e\n\u003cli\u003eCompatibility: Fits pens that accept standard international short cartridges; not compatible with proprietary systems such as Pilot, Platinum, or Lamy\u003c\/li\u003e\n\u003cli\u003eFilling method: Cartridge\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293478338835,"sku":"8036","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Mediterranean-Blue-Ink-Cartridges.jpg?v=1697564206"},{"product_id":"diamine-monaco-red-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Monaco Red","description":"\u003cp\u003eDiamine Ink Cartridges Pack of 18 - Monaco Red brings a confident, versatile red to everyday writing. The convenient cartridge format makes refilling quick and tidy, while the generous 18-count pack keeps your favorite fountain pens ready for notes, lists, and color-coded pages.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Character\u003c\/h2\u003e\u003cp\u003eMonaco Red reads as a clean, classic red with enough depth for clear legibility on white or cream paper. It adds emphasis without overwhelming the page, lending warmth to annotations, headers, and daily journaling. The ink lays down with consistent flow typical of Diamine formulations, supporting smooth lines and reliable starts.\u003c\/p\u003e\u003ch2\u003eCartridge Convenience\u003c\/h2\u003e\u003cp\u003ePrefilled cartridges offer grab-and-go ease with minimal mess and no need for bottled refills. Slip a few into a case or desk drawer so a fresh pop of red is always on hand for quick swaps at home, work, or on the move.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eColor: Monaco Red\u003c\/li\u003e\n\u003cli\u003eFormat: Fountain pen ink cartridges\u003c\/li\u003e\n\u003cli\u003eCount: 18 cartridges per pack\u003c\/li\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293478633747,"sku":"8009","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Monaco-Red-Ink-Cartridges.jpg?v=1697564188"},{"product_id":"diamine-orange-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Orange","description":"\u003cp\u003eBright and lively, Diamine Ink Cartridges Pack of 18 - Orange brings a fun pop of color to notes, planners, and correspondence. The dependable, water-based formula delivers consistent flow and clean starts, keeping your fountain pen ready for everyday writing.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eThis classic orange ink offers cheerful visibility without overwhelming the page. Expect smooth lines, light shading on most papers, and reliable behavior across a range of nib sizes.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Use\u003c\/h2\u003e\u003cp\u003eThese are standard international short cartridges, an easy fit for many modern fountain pens that use the universal cartridge format. Snap one in for quick, mess-free refills at home, at work, or on the go.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003cli\u003eColor: Orange\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based, dye ink\u003c\/li\u003e\n\u003cli\u003eFormat: Standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges\u003c\/li\u003e\n\u003cli\u003eCountry of origin: United Kingdom\u003c\/li\u003e\n\u003cli\u003eCompatibility: Most pens that accept standard international short cartridges\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293478666515,"sku":"8017","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Orange-Ink-Cartridges.jpg?v=1697564174"},{"product_id":"diamine-passion-red-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Passion Red","description":"\u003cp\u003eBring a vivid, confident red to everyday writing with the Diamine Ink Cartridges Pack of 18 - Passion Red. This convenient box keeps your favorite shade ready for journals, annotations, and correspondence, offering clean, no-fuss refills wherever you write.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003ePassion Red delivers a lively, well-saturated hue that reads clearly on the page without overpowering your notes. The water-based, dye-based formula is known for smooth, consistent flow across a wide range of nibs, helping handwriting look crisp and even.\u003c\/p\u003e\u003ch2\u003eEasy, Travel-Ready Convenience\u003c\/h2\u003e\u003cp\u003eThese standard international short cartridges drop in quickly and securely, so you can swap colors or refresh your pen without a converter or bottle. Keep a few in your case as dependable backups for meetings, classes, or travel.\u003c\/p\u003e\u003cp\u003eBlended by Diamine, a respected UK ink maker since 1864, this cartridge set brings trusted performance in a versatile, portable format.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eColor: Passion Red\u003c\/li\u003e\n\u003cli\u003eFormat: Standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges per box\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based, dye-based fountain pen ink\u003c\/li\u003e\n\u003cli\u003eCompatibility: Fits most pens that accept standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eBrand: Diamine (est. 1864)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293478764819,"sku":"8028","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Passion-Red-Ink-Cartridges.jpg?v=1697564141"},{"product_id":"diamine-saddle-brown-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Saddle Brown","description":"\u003cp\u003eRich, earthy, and reliably balanced, Diamine Ink Cartridges Pack of 18 - Saddle Brown brings a classic brown tone to everyday notes, journals, and correspondence. Pre-filled cartridges offer clean convenience with consistent performance, so your favorite fountain pens are always ready to write.\u003c\/p\u003e\u003ch2\u003eCraftsmanship \u0026amp; Color\u003c\/h2\u003e\u003cp\u003eSaddle Brown delivers a warm mid-brown with natural shading that remains comfortably legible on both white and cream papers. The dye-based, water-soluble formula is well-behaved across a wide range of nibs and papers, supporting clean starts and steady flow without fuss.\u003c\/p\u003e\u003ch2\u003eWriting Experience\u003c\/h2\u003e\u003cp\u003eThese standard international short cartridges seat quickly and seal securely, making color changes simple at home or on the go. Expect smooth ink delivery, balanced dry times, and easy cleanup. It is a versatile everyday brown that suits planners, class notes, and letter writing alike.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eColor: Saddle Brown (warm brown)\u003c\/li\u003e\n\u003cli\u003eInk type: Dye-based, water-soluble fountain pen ink\u003c\/li\u003e\n\u003cli\u003eFormat: Standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges\u003c\/li\u003e\n\u003cli\u003eCompatibility: Fits most pens that accept standard international short cartridges\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293479059731,"sku":"8046","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Saddle-Brown-Ink-Cartridges.jpg?v=1697564093"},{"product_id":"diamine-steel-blue-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Steel Blue","description":"\u003cp\u003eDiamine Ink Cartridges Pack of 18 - Steel Blue brings a versatile, cool-toned blue to everyday notes, planners, and correspondence. Pre-filled cartridges make refills clean and quick while delivering steady flow at an approachable price.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eSteel Blue sits between classic blue and teal, adding subtle character without sacrificing legibility. Diamine's water-based, dye formula is known for smooth, dependable writing from the first stroke, making this an easy choice for daily carry and casual journaling.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Convenience\u003c\/h2\u003e\u003cp\u003eThese are standard international short cartridges, compatible with most cartridge-fill fountain pens that accept the international short format. The compact 18-count box tucks neatly into a desk drawer or pen case so a fresh ink change is always within reach.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eColor: Steel Blue\u003c\/li\u003e\n\u003cli\u003eCartridge format: Standard International Short\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based, dye ink\u003c\/li\u003e\n\u003cli\u003eCompatibility: Fits most pens that accept international short cartridges\u003c\/li\u003e\n\u003cli\u003eBrand: Diamine (UK)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293479158035,"sku":"8011","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Steel-Blue-Ink-Cartridges.jpg?v=1697563994"},{"product_id":"diamine-turquoise-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Turquoise","description":"\u003cp\u003eDiamine Ink Cartridges Pack of 18 - Turquoise delivers a lively blue-green tone with the reliable flow that writers have trusted for generations. The portable cartridge format keeps refills quick and tidy, while the vibrant turquoise adds character to notes, journals, and correspondence without sacrificing readability.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eThis turquoise leans fresh and bright, offering attractive shading on a range of papers. The water-based dye formula is designed for smooth starts and consistent lines, helping your fountain pen write cleanly whether you are jotting ideas or drafting longer pages.\u003c\/p\u003e\u003ch2\u003eEasy Cartridge Convenience\u003c\/h2\u003e\u003cp\u003ePre-filled cartridges simplify ink changes at home, at work, or on the go. Just pop in a new cartridge and keep writing, no bottled setup required. It is a practical way to enjoy Diamine color with minimal mess and maximum portability.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003cli\u003eColor: Turquoise\u003c\/li\u003e\n\u003cli\u003eFormat: Fountain pen ink cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: Pack of 18\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based dye\u003c\/li\u003e\n\u003cli\u003eCompatibility: For cartridge-filled fountain pens; check your pen's cartridge type\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293479780627,"sku":"8003","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Turquoise-Ink-Cartridges.jpg?v=1697563951"},{"product_id":"diamine-ultra-green-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Ultra Green","description":"\u003cp\u003eBring a lively pop of color to everyday notes and journals with Diamine Ink Cartridges Pack of 18 - Ultra Green. This convenient, value-friendly set delivers a fresh green hue with smooth, consistent flow, making quick lists, study sessions, and daily writing feel crisp and legible from the first stroke.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eUltra Green offers a vivid, readable tone that stands out on the page without overwhelming it. The ink is formulated for reliable start-up and steady line consistency, helping your handwriting stay clean and controlled across a range of paper types.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Convenience\u003c\/h2\u003e\u003cp\u003eThese are international standard short cartridges for quick, no-mess refills at home, work, or on the go. The compact format slips easily into a pen case, and the 18-count pack keeps you stocked for weeks of everyday use. Simply click in a fresh cartridge and keep writing.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eInk color: Ultra Green\u003c\/li\u003e\n\u003cli\u003eFormat: Pack of 18 fountain pen ink cartridges\u003c\/li\u003e\n\u003cli\u003eCartridge type: International standard short\u003c\/li\u003e\n\u003cli\u003eUse: For fountain pens that accept international short cartridges\u003c\/li\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293479813395,"sku":"8051","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Ultra-Green-Ink-Cartridges.jpg?v=1697563942"},{"product_id":"diamine-warm-brown-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Warm Brown","description":"\u003ch2\u003eEveryday warmth, ready to write\u003c\/h2\u003e\u003cp\u003eThe Diamine Ink Cartridges Pack of 18 - Warm Brown delivers a versatile, earthy brown that reads clearly on the page and suits everything from daily notes to thoughtful letters. Diamine's reliable, dye-based formulation offers smooth, consistent flow in a convenient cartridge format.\u003c\/p\u003e\u003ch3\u003eColor \u0026amp; Performance\u003c\/h3\u003e\u003cp\u003eWarm Brown sits in a balanced mid-brown register with a natural, organic character. It maintains strong legibility while adding subtle richness, and can show gentle shading on fountain-pen-friendly papers. The result is a comfortable, understated tone that works across professional and personal writing.\u003c\/p\u003e\u003ch3\u003eCompatibility \u0026amp; Convenience\u003c\/h3\u003e\u003cp\u003eEach cartridge is the standard international short size, making it easy to swap into a wide range of cartridge-converter fountain pens. The compact box of 18 keeps you stocked for journals, planners, and on-the-go writing, with the dependable behavior enthusiasts expect from Diamine.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003cli\u003eColor: Warm Brown\u003c\/li\u003e\n\u003cli\u003eInk type: Dye-based fountain pen ink\u003c\/li\u003e\n\u003cli\u003eFormat: Standard International Short cartridges\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges\u003c\/li\u003e\n\u003cli\u003eCompatibility: Pens that accept standard international short cartridges\u003c\/li\u003e\n\u003cli\u003eMade in the UK\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293479878931,"sku":"8007","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Warm-Brown-Ink-Cartridges.jpg?v=1697563933"},{"product_id":"diamine-wild-strawberry-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Wild Strawberry","description":"\u003cp\u003eAdd a bright, joyous pink to your rotation with Diamine Ink Cartridges Pack of 18 - Wild Strawberry. This lively hue leans strawberry-red, bringing cheerful contrast to notes, journals, and everyday correspondence. Convenient cartridges keep your pens ready to write with reliable, mess-free color changes at home or on the go.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eWild Strawberry delivers a vivid, readable pink with crisp saturation on white and cream papers. The water-based dye formula flows cleanly, starts easily after pauses, and offers light shading in broader nibs and wetter pens. It is an approachable, expressive color that stays legible while still feeling playful.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Use\u003c\/h2\u003e\u003cp\u003eThese are standard international short cartridges, fitting most cartridge-converter fountain pens that accept the international format. Pop one in for quick ink swaps, toss a few in a pen case for travel, and enjoy the flexibility of cartridges without committing to a full bottle.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eColor: Wild Strawberry (vivid pink-red)\u003c\/li\u003e\n\u003cli\u003eInk type: Water-based dye fountain pen ink\u003c\/li\u003e\n\u003cli\u003eCartridge format: Standard international short\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges per pack\u003c\/li\u003e\n\u003cli\u003eCompatibility: Pens that accept standard international short cartridges\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293479911699,"sku":"8085","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Wild-Strawberry-Ink-Cartridges.jpg?v=1697563923"},{"product_id":"diamine-woodland-green-ink-cartridges","title":"Diamine Ink Cartridges Pack of 18 - Woodland Green","description":"\u003cp\u003eBring a grounded, nature-inspired tone to your pages with Diamine Woodland Green ink cartridges. This practical 18-pack offers convenient, mess-free refills with the smooth, reliable flow that has made Diamine a trusted choice for daily writing and casual journaling.\u003c\/p\u003e\u003ch2\u003eColor \u0026amp; Performance\u003c\/h2\u003e\u003cp\u003eWoodland Green is a classic, natural green that reads cleanly on the page and adds character to notes, planners, and letters. The ink lays down consistently and handles everyday paper well, helping your handwriting stay crisp and readable.\u003c\/p\u003e\u003ch3\u003eCompatibility \u0026amp; Use\u003c\/h3\u003e\u003cp\u003eThese international standard short cartridges fit a wide range of cartridge-converter fountain pens. Keep a pack at your desk, in your bag, or with a favorite pen case for quick, no-fuss replacements wherever you write.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: Diamine\u003c\/li\u003e\n\u003cli\u003eColor: Woodland Green\u003c\/li\u003e\n\u003cli\u003eCartridge format: International standard short\u003c\/li\u003e\n\u003cli\u003eQuantity: 18 cartridges per pack\u003c\/li\u003e\n\u003cli\u003eUse: For fountain pens that accept international short cartridges\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamine","offers":[{"title":"Default Title","offer_id":47293479977235,"sku":"8037","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2083\/6627\/files\/Diamine-Woodland-Green-Ink-Cartridges.jpg?v=1697563914"},{"product_id":"diamine-soft-mint-ink-cartridges-pack-of-18","title":"Diamine Ink Cartridges Pack of 18 - Soft Mint","description":"\u003cp\u003eDiamine Soft Mint ink cartridges bring a cool, breezy green to everyday notes, planners, and correspondence. The understated pastel tone adds a gentle pop of color without overwhelming the page, and the 18-count pack keeps you comfortably stocked for regular use at home, work, or on the go.\u003c\/p\u003e\u003ch3\u003eColor \u0026amp; Character\u003c\/h3\u003e\u003cp\u003eSoft Mint sits in a light, refreshing zone of green that feels clean and modern. It suits headers, annotations, and relaxed journaling, and its airy hue rewards broader or wetter nibs when you want extra presence on the page. For a subtle accent, pair it with finer nibs to keep lines crisp and calm.\u003c\/p\u003e\u003ch3\u003eCompatibility \u0026amp; Convenience\u003c\/h3\u003e\u003cp\u003eThese are Standard International Short cartridges, making them a simple, mess-free refill for many cartridge\/converter fountain pens. Swap a cartridge in seconds and keep writing. 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