{"title":"Fountain Pen Cartridges","description":"\u003cp\u003eCartridges are a quick and convenient way of refilling a \u003ca href=\"\/collections\/fountain-pens\"\u003efountain pen\u003c\/a\u003e. Most fountain pens these days take cartridges (with a few exceptions, such as \u003ca href=\"\/collections\/pelikan-souveran\"\u003ePelikan's Souveran range\u003c\/a\u003e, most \u003ca href=\"https:\/\/cultpens.live\/collections\/twsbi?productListPgNo=1\u0026amp;productListFilters=Sub_Category%3AFountain%20Pens\"\u003eTWSBI fountain pens\u003c\/a\u003e, \u003ca href=\"\/collections\/opus-88\"\u003eOpus 88 pens\u003c\/a\u003e, and the \u003ca href=\"\/collections\/lamy-2000\"\u003eLamy 2000\u003c\/a\u003e). They generally work out a little more expensive than buying \u003ca href=\"\/collections\/fountain-pen-ink\"\u003ebottled ink\u003c\/a\u003e, and fewer choices are available, but the ease of refilling beats those problems for most people. And if you are \u003cem\u003enot\u003c\/em\u003e one of those people? Most pens that use cartridges can also use bottled ink with the addition of a \u003ca href=\"\/collections\/fountain-pen-converters\"\u003econverter\u003c\/a\u003e, giving you many of the advantages of both systems.\u003c\/p\u003e\n\u003cp\u003eThere are quite a few different types of cartridges, with the most common type being \u003ca href=\"\/collections\/international-standard-cartridges\"\u003estandard 'international' cartridges\u003c\/a\u003e, which come in two different sizes. These are used by quite a few different pen brands, including most of the smaller brands. Quite a few of the bigger brands, though, have their own shape and size for cartridges, so you'll need the manufacturer's own cartridges if your pen was made by \u003ca href=\"\/collections\/parker\"\u003eParker\u003c\/a\u003e, \u003ca href=\"\/collections\/sheaffer\"\u003eSheaffer\u003c\/a\u003e (with some exceptions), \u003ca href=\"\/collections\/lamy\"\u003eLamy\u003c\/a\u003e, \u003ca href=\"\/collections\/cross\"\u003eCross\u003c\/a\u003e, Platignum, \u003ca href=\"\/collections\/platinum\"\u003ePlatinum\u003c\/a\u003e or \u003ca href=\"\/collections\/pilot\"\u003ePilot\u003c\/a\u003e (with some exceptions).\u003c\/p\u003e","products":[{"product_id":"caran-dache-chromatics-inkredible-ink-cartridges","title":"Caran d'Ache Chromatics INKredible Ink Cartridges","description":"\u003cp\u003eCaran d'Ache Chromatics is an INKredible range of luxury ink, safe for use in all compatible fountain pens, with 12 original and vibrant shades to help bring inspiration to your writing.\u003c\/p\u003e\u003cp\u003ePack of 6 standard short international ink cartridges. Each cartridge is individually printed with the Caran d'Ache branding and the ink colour.\u003c\/p\u003e","brand":"Caran d'Ache","offers":[{"title":"Infinite Grey","offer_id":43642382909683,"sku":"CD43851-GY","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Cosmic Black","offer_id":43642821968115,"sku":"CD43851-BK","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Organic Brown","offer_id":43642822000883,"sku":"CD43851-BN","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Electric Orange","offer_id":43642822033651,"sku":"CD43851-OR","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Infrared","offer_id":43642822066419,"sku":"CD43851-RD","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Divine Pink","offer_id":43642822099187,"sku":"CD43851-PK","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Ultraviolet","offer_id":43642822131955,"sku":"CD43851-VI","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Idyllic Blue","offer_id":43642822164723,"sku":"CD43851-IB","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Magnetic Blue","offer_id":43642822197491,"sku":"CD43851-MB","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Hypnotic Turquoise","offer_id":43642822230259,"sku":"CD43851-TQ","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Vibrant Green","offer_id":43642822263027,"sku":"CD43851-VG","price":4.7,"currency_code":"GBP","in_stock":true},{"title":"Delicate Green","offer_id":43642822295795,"sku":"CD43851-DG","price":4.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/6388\/4787\/products\/CD43851-BK_Caran-dAche-Chromatics-INKredible-Ink-Cartridges-Cosmic-Black_P1.jpg?v=1663341104"},{"product_id":"cult-pens-deep-dark-ink-cartridges-for-fountain-pens-by-diamine","title":"Cult Pens Deep Dark Ink Cartridges for Fountain Pens by Diamine","description":"\u003cp\u003e\u003cstrong\u003eWe're delighted to announce that Cult Pens Deep Dark inks are now available in international standard short cartridges!\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCult Pens Deep Dark inks are perfect for all occasions - dark enough to use for business, but with a richness to their colours that make them more interesting than most. They're crafted for us in Liverpool, by Diamine, so they are among the safest and most reliable fountain pen inks available.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCult Pens Deep Dark Blue\u003c\/strong\u003e, our first ink, is a rich and pleasing colour that matches our logo perfectly. When first in contact with paper, Deep Dark Blue ink leaves a satisfyingly deep dark line that dries to a strong blue-black, with hints of purple. We started with a limited production run, but people loved it so much that it's here to stay, with the addition of smaller bottles and cartridges. In fact, it was so popular that we decided to try another colour!\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDeep Dark Brown\u003c\/strong\u003e brings the same richness to another hue. When wet, it looks almost black, but the warm, earthy walnut-brown shade appears as it dries. The result is a colour that doesn't stand out too much, but gives your writing more character than a black ink would. It's a great ink for drawing and sketching too - darker than most sepia inks, but with a warmth that's missing in black. A wet brush can draw some colour from your lines, but there's enough water resistance that the lines remain visible.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDeep Dark Green\u003c\/strong\u003e provides a highly-saturated dark green hue. Like our other Deep Dark Inks, when wet, the line is almost black, then as the ink dries, the satisfying deep green colour emerges. There's plenty of shading to be had, a smooth, wet writing pen will bring this out best.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDeep Dark Red\u003c\/strong\u003e is something we have wanted ever since the inception of Deep Dark Blue. Sure, there are plenty of \u003cem\u003edark\u003c\/em\u003e red inks available, but nothing quite deep enough for our liking. When the ink dries, it becomes a deep burgundy colour perfect for calligraphy or as a daily writer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDeep Dark Purple\u003c\/strong\u003e was a frequent request, so by popular demand, we've got ourselves a deep dark purple ink. It's deep, it's dark and it is, thankfully, still purple. Just what you've been asking for!\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDeep Dark Orange\u003c\/strong\u003e didn't even sound possible, but Diamine managed it. A bit brighter than its stablemates, Deep Dark Orange is an intense and unusual colour with plenty of shading.\u003c\/p\u003e\n\n\u003cp\u003ePack of 18 ink cartridges.\u003c\/p\u003e\n\n\u003cp\u003eAll of these inks are also available in 80ml bottles and 30ml bottles.\u003c\/p\u003e\n\n\u003cp\u003eYou can find out more about Diamine and how Cult Pens Deep Dark Blue Ink came to life via our blog.\u003c\/p\u003e","brand":"Diamine","offers":[{"title":"Deep Dark Red","offer_id":43642422493427,"sku":"CU29304-RD","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"Deep Dark Blue","offer_id":43642884817139,"sku":"CU29304-BU","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"Deep Dark Green","offer_id":43642884849907,"sku":"CU29304-GN","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"Deep Dark Brown","offer_id":43642884882675,"sku":"CU29304-BN","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"Deep Dark Purple","offer_id":43642884915443,"sku":"CU29304-PU","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"Deep Dark Orange","offer_id":43642884948211,"sku":"CU29304-OR","price":5.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/6388\/4787\/products\/CU29304-ZZZ_Cult-Pens-Deep-Dark-Ink-Cartridges-for-Fountain-Pens-Pack-of-18_P1.jpg?v=1663765512"},{"product_id":"diamine-ink-cartridges-pack-of-18","title":"Diamine Ink Cartridges Pack of 18","description":"\u003cp\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWriter's Blood now available in cartridges!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDiamine ink in a range of colours in international standard short format cartridges. These cartridges will fit most pens \u003cstrong\u003eexcept\u003c\/strong\u003e Parker, Cross, Sheaffer and Lamy (this is not exhaustive - if you have any doubts about fitment please contact us). Diamine ink is suitable for all brands of fountain pen. \u003cbr\u003eDiamine have been making ink in England since 1864 and today their fountain pen ink is generally held to be one of the finest available and is highly-regarded by fountain pen connoisseurs. Diamine ink is water-based, acid-free and non-toxic, and is vegan-friendly.\u003c\/p\u003e\n\u003cp\u003ePack contains 18 cartridges.\u003c\/p\u003e\n\u003cp\u003eThe WES Imperial Blue was a special edition for the 25th Anniversary of the Writing Equipment Society, which was popular enough for the colour to become a permanent fixture in the Diamine catalogue. Monaco Red was formulated for Prince Rainier III of Monaco and the Grimaldi family. Diamine Royal Blue was used by presidents Obama and Medvedev to sign the nuclear arms treaty in April 2010.\u003c\/p\u003e\n\u003cp\u003eWe have worked with Diamine to make special colours that are exclusive to Cult Pens - see the Cult Pens Deep Dark Inks.\u003c\/p\u003e\n\u003cp\u003eThe full 100-colour range is available in 80ml bottles and 30ml bottles.\u003c\/p\u003e","brand":"Diamine","offers":[{"title":"Ancient Copper","offer_id":43642436354291,"sku":"DM08191-ANCI","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"Blue-Black","offer_id":43642913030387,"sku":"DM08191-BLBK","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"Chocolate 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Diamine ink is water-based, acid-free and non-toxic, and is vegan-friendly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eClassic Pack:\u003c\/strong\u003e \u003cbr\u003e4 Jet Black \u003cbr\u003e4 Prussian Blue \u003cbr\u003e4 Blue-Black \u003cbr\u003e4 Umber \u003cbr\u003e4 Dark Brown \u003cbr\u003e(Total: 20)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRegal Pack:\u003c\/strong\u003e \u003cbr\u003e4 Royal Blue \u003cbr\u003e4 WES Imperial Blue \u003cbr\u003e4 Emerald \u003cbr\u003e4 Monaco Red \u003cbr\u003e4 Imperial Purple \u003cbr\u003e(Total: 20)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFloral Pack:\u003c\/strong\u003e \u003cbr\u003e4 Passion Red \u003cbr\u003e4 Woodland Green \u003cbr\u003e4 Orange \u003cbr\u003e4 Mediterranean Blue \u003cbr\u003e4 Turquoise \u003cbr\u003e(Total: 20)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSovereign Pack:\u003c\/strong\u003e \u003cbr\u003e4 Sapphire Blue \u003cbr\u003e4 Ancient Copper \u003cbr\u003e4 Majestic Blue \u003cbr\u003e4 Chocolate Brown \u003cbr\u003e4 Maroon \u003cbr\u003e(Total: 20)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eElegance Pack:\u003c\/strong\u003e \u003cbr\u003e4 Claret \u003cbr\u003e4 Teal \u003cbr\u003e4 Midnight \u003cbr\u003e4 Oxblood \u003cbr\u003e4 Saddle Brown \u003cbr\u003e(Total: 20)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFiesta Pack:\u003c\/strong\u003e \u003cbr\u003e4 Autumn Oak \u003cbr\u003e4 Matador \u003cbr\u003e4 Marine \u003cbr\u003e4 Bilberry \u003cbr\u003e4 Ultra Green \u003cbr\u003e(Total: 20)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePrestige Pack:\u003c\/strong\u003e \u003cbr\u003e4 Oxford Blue \u003cbr\u003e4 Syrah \u003cbr\u003e4 Sherwood Green \u003cbr\u003e4 Grey \u003cbr\u003e4 Steel Blue \u003cbr\u003e(Total: 20)\u003c\/p\u003e","brand":"Diamine","offers":[{"title":"Classic","offer_id":43642436223219,"sku":"DM08209-CLAS","price":6.5,"currency_code":"GBP","in_stock":true},{"title":"Elegance","offer_id":43642911719667,"sku":"DM08209-ELEG","price":6.5,"currency_code":"GBP","in_stock":true},{"title":"Floral","offer_id":43642911752435,"sku":"DM08209-FLOR","price":6.5,"currency_code":"GBP","in_stock":true},{"title":"Regal","offer_id":43642911785203,"sku":"DM08209-REGA","price":6.5,"currency_code":"GBP","in_stock":true},{"title":"Sovereign","offer_id":43642911817971,"sku":"DM08209-SOVE","price":6.5,"currency_code":"GBP","in_stock":true},{"title":"Fiesta","offer_id":43642911850739,"sku":"DM08209-FIES","price":6.5,"currency_code":"GBP","in_stock":true},{"title":"Prestige","offer_id":43642911883507,"sku":"DM08209-PRES","price":6.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/6388\/4787\/products\/DM08209-ZZZ_Diamine-Ink-Cartridges-Assorted-Pack-of-20_P1.jpg?v=1663764634"},{"product_id":"diamine-ink-cartridges-pack-of-6","title":"Diamine Ink Cartridges Pack of 6","description":"\u003cp\u003e\u003cstrong\u003eWriter's Blood now available in cartridges!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003eDiamine ink in a range of colours in international standard short format cartridges. 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