SKU: 1470768446

Platinum 3776 Century Fountain Pen - Black Diamond

Sale price$165.60 Regular price$184.00
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Description

Platinum 3776 Century Fountain Pen - Black DiamondThe Platinum 3776 Century Fountain Pen in Black Diamond offers a contemporary interpretation of Platinum's flagship writing instrument. Combining a translucent smoky black body with rhodium plated trim and Platinum's renowned 14 karat gold nib, the Black Diamond balances modern aesthetics with the proven performance that has made the 3776 Century one of the most respected fountain pens in the world. Inspired by the depth and subtle brilliance of its

The Platinum 3776 Century Fountain Pen in Black Diamond offers a contemporary interpretation of Platinum's flagship writing instrument. Combining a translucent smoky-black body with rhodium-plated trim and Platinum's renowned 14-karat gold nib, the Black Diamond balances modern aesthetics with the proven performance that has made the 3776 Century one of the most respected fountain pens in the world.

Inspired by the depth and subtle brilliance of its namesake gemstone, the Black Diamond reveals layers of color and transparency beneath its polished surface. The result is a pen that feels understated at first glance yet rewards closer inspection with remarkable visual depth and character.

Craftsmanship & Design

The Black Diamond is crafted from Platinum's durable AS resin, allowing light to pass through the smoky translucent body while maintaining a sophisticated appearance. Unlike a traditional opaque black fountain pen, the material creates an intriguing interplay of shadow and transparency that highlights the pen's internal architecture without becoming a full demonstrator.

Rhodium-plated trim complements the darker resin beautifully, providing a crisp contrast that reinforces the pen's modern aesthetic. The familiar cigar-shaped silhouette of the 3776 Century remains intact, offering proportions that have become a hallmark of Platinum's design philosophy.

One of the defining features of the collection is Platinum's proprietary Slip & Seal cap mechanism. Designed to significantly reduce ink evaporation, the system helps keep the pen ready to write even after extended periods of inactivity, making it particularly valuable for collectors and enthusiasts who rotate among multiple writing instruments.

Writing Experience

At the heart of the Black Diamond is a handcrafted 14-karat gold nib produced in Japan. Platinum's nibs are celebrated for their precision, consistency, and controlled tactile feedback. Rather than pursuing excessive smoothness, they provide a writing experience that maintains excellent connection to the page while delivering dependable ink flow.

The lightweight construction and balanced design make the pen comfortable for extended writing sessions. Whether used for journaling, correspondence, note-taking, or professional work, the 3776 Century delivers a refined writing experience built around reliability and control.

Platinum Heritage

Founded in 1919, Platinum Pen Co. has spent more than a century refining the art of fountain pen manufacturing. The 3776 collection, named after the elevation of Mount Fuji, represents the company's pursuit of an ideal writing instrument through a combination of traditional craftsmanship and practical innovation.

The Black Diamond exemplifies the versatility of the 3776 Century platform, pairing Platinum's respected engineering with a contemporary finish that appeals to writers seeking a distinctive yet understated fountain pen. It remains a compelling choice for enthusiasts looking to experience one of Japan's most influential modern fountain pen designs.

Technical Specifications

  • Brand: Platinum
  • Collection: 3776 Century
  • Color: Black Diamond
  • Trim: Rhodium-Plated
  • Product Type: Fountain Pen
  • Body Material: AS Resin
  • Nib Material: 14K Gold
  • Filling System: Cartridge/Converter
  • Cap Technology: Slip & Seal Mechanism
  • Country of Origin: Japan
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1470768446

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4.3 ★★★★★
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Iryna
Lowell, US
★★★★★ 5
Comfortable, reliable, and super convenient for everyday use
Size: Size 3, Unit Count: 136, Size: Size 3, Unit Count: 136
I’ve been using these diapers for a while now and they’ve honestly made things much easier for us. One of my favorite features is the pull-up (pant-style) design. It’s especially helpful when the baby is active and doesn’t want to stay still during changes. Compared to traditional diapers, these feel much more convenient and quicker to put on. In terms of comfort, they are very soft and lightweight, and my baby seems comfortable wearing them for long periods. I also really appreciate that they are unscented — there’s no strong or artificial smell, which is something I’ve noticed with other brands. Absorbency has been great so far. They don’t feel overly wet even after extended use and have held up through the entire night without leaks, which is a huge plus. The inside material stays evenly distributed and doesn’t become lumpy, even after several hours. Pros: Easy pull-up design (great for active babies) Soft, lightweight, and comfortable No strong scent or odor Good absorbency without feeling too wet Reliable overnight protection Holds shape well (no clumping) Cons: Slightly different from traditional diapers, may take a bit of getting used to Overall, these have been a very reliable choice for us. I’ve already reordered them multiple times, and they’ve consistently performed well. I would definitely recommend them to other parents looking for something comfortable, convenient, and dependable.
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Reviewed in the United States on March 22, 2026
W
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Wilfredo M.
Draper, US
★★★★★ 5
Leak Proof!
Size: Size 5, Unit Count: 56
These are great for overnights! They do not like and you don’t have to worry about not putting it in correctly as you struggle with a rolling alligator. I’m a fan because they do not leak like others while the kids sleep.
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Reviewed in the United States on May 5, 2026
S
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Steph
Battle Creek, US
★★★★★ 5
Great for Sensitive Skin
Size: Size 5, Unit Count: 128
I've tried other diapers and I keep coming back to Huggies as they are the only ones that don't cause irritation for my little one. Little one is 12kg and we use size 5. They are very roomy but still snug enough around the waist. I'm amazed at how absorbent and soft they are. Although there are "cheaper" diapers out there, they don't hold as much and aren't as comfortable.
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Reviewed in the United States on April 4, 2026
R
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Rory Rotten
Grantham, US
★★★★★ 4
Good, but not better than Pampers 360.
Size: Size 5, Unit Count: 100, Size: Size 5, Unit Count: 100
We use Pampers 360’s for our 18 month old, but we decided to try out Huggies 360’s to check if they were better Huggies 360 differ from Pampers 360 in size. These Huggies are huge compared to Pampers, they fit true to size but are puffy and take up more space in the diaper bag and the diaper drawer. My toddler prefers to run around wearing only a diaper. Huggies are less durable than Pampers, they will fray and pill more with the friction of surfaces. They perform the same as the Pampers, we didn’t experience any leaks. They are also similar is softness to Pampers. The elastic at the sides also seems tighter than Pampers. The main reason we won’t be switching to Huggies 360 is that the absorbent panel in the front is wider and less flexible so more difficult to get into a comfortable position for my son’s anatomy. They do function well as diapers, they just aren’t for us.
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Reviewed in the United States on June 2, 2025
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Verified Purchase
Arely hernandez
Boise, US
★★★★★ 5
Que mi bebé se sienta comoda
Size: Size 6, Unit Count: 104
It is a good product. I recommend it; my daughter feels very comfortable.
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Reviewed in the United States on May 5, 2026

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