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Description
S.T. Dupont Diamond Guilloche Fountain Pen - RubyWe are delighted to announce the launch of the highly anticipated S. T. Dupont 'Diamond Guilloche' collection for 2020, a luxurious series of fine writing instruments created exclusively for the US market. This new collection combines old world Dupont glamour with an updated modern design. S. T. Dupont brings together one of their oldest and most treasured crafting techniques 'guilloche under lacquer' to the newly updated large size 'Line D'.
We are delighted to announce the launch of the highly anticipated S.T. Dupont 'Diamond Guilloche' collection for 2020, a luxurious series of fine writing instruments created exclusively for the US market.
This new collection combines old world Dupont glamour with an updated modern design. S.T. Dupont brings together one of their oldest and most treasured crafting techniques 'guilloche under lacquer' to the newly updated large size 'Line D'. Available in 3 vibrant colors: Ruby, Sapphire and Aquamarine, the pens combine the skills of the S.T. Dupont master goldsmith with the expertise of their master lacquerer.
Diamond 'Guilloche'
The 'Diamond Guilloche' collection features the namesake technique that is French for "engine turning." The diamond design is created by an engine turning process that engraves very precise, intricate, geometric patterns into an underlying material. For this latest launch, S.T. Dupont selected a finely detailed diamond pattern which is then overlaid with sumptuously colored Urushi lacquer, the result is simply spectacular.
Urushi Lacquer
S.T. Dupont's artisans add layers of natural lacquer to the surface of the diamond patterned guilloche in a months long process involving many applications and polishing to impart depth and mystery to each finish. The engraving causes the reflection of light through the overlay of natural Urushi lacquer creating a stunning display of light and color.
Line D Large
The collection is launched on the newly updated Line D Large pen; recently remodeled with a new bold blazon on the articulated clip, an enhanced Dupont 'D' in the crown of the cap and a perfectly balanced shape for exceptional writing. The pen cap closes with Dupont's iconic 'cling' and features a fluted grip section for a superb writing experience.
Nib Material: 14k Gold
Filling Mechanism: Cartridge, Converter
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Perfect first shark book for littles
Format: Paperback
The book is super easy to read to my 4 year old son! He’s been really into sharks so I wanted something that was overpowered by facts on each page. This one is perfect! Each page has a different shark and the page do not have lengthy text but enough to still be educational. Keeps his attention and he’s able to learn a little bit about each shark. Perfect first shark book!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Great book for toddler who loves sharks!
Format: Paperback
My son who is two loves sharks and this book was perfect for him. I love the little facts in there.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
★★★★★ 5
Great pictures and good information
Format: Paperback
Wonderful pictures allow my 3 yr old grandson to not only learn about many sharks , but good information as well. He can name the sharks , memorizing them perhaps, but yet has learned the distinct features of many from this book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 6, 2025
★★★★★ 5
Surprisingly awesome
Format: Paperback
This book is awesome. I was pleasantly surprised at the detailed information inside considering its price.
My kids are 2 and 5 and love looking at the pictures while I read the information to them. It’s not so overboard that my it’s over my 5 year old’s head but detailed enough to supply him with new knowledge.
This is perfect to go along with our household shark obsession.
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Reviewed in the United States on September 3, 2025
★★★★★ 5
Good pics and info
Format: Paperback
My kids are obsessed with this book. Good amount of info about sharks for kids.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
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