Numerous books written by great writers. With its unique worldview and emotionally moving stories, it has colored people's hearts and enriched the world as literature. However, strange things appear that dye the book black. He was a being called a "corrosor" who was born out of negative feelings toward literature. Only literary masters who have been reincarnated with the power of "alchemists" can stand against the eroders whose purpose is to invade books and erase them from this world. A great writer dives into a book that has been eroded and saves it by defeating the eroder. All to protect the literature of this world. This is a new literary masterpiece written by those who have poured their souls into creating their works .

It features a pattern inspired by Dazai's costume, and Nakaishi uses almandine garnet, which is close to the image color. The arm part incorporates a braided design reminiscent of the character's hairstyle, giving it a cute look.

I chose a yellow diamond for the diamond set in the arm. Yellow is also the color of his eyes, a bright color that symbolizes his lively character.
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Price Silver material (SV925) 25,800 yen,
Platinum material (Pt950) 79,800 yen -
Gem almandine garnet,
Yellow diamond (all natural) - Sizes 7 to 20 (in 0.5 size increments)

"Gears" is also known as one of Akutagawa's masterpieces. Gears, which appear as an important motif in the work, are the main design, and smoky quartz is used to match the color of the costume. The Japanese name for the mysteriously colored smoky quartz is smoky quartz, which is perfect for Akutagawa, who is known for being a smoker.

The blue decoration of the loop tie that Akutagawa wears is expressed using the jewel London blue topaz. It has high transparency and a bright blue color that captivates viewers.
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Price Silver material (SV925) 25,800 yen,
Platinum material (Pt950) 98,000 yen -
gemstone smoky quartz
London Blue Topaz (all natural) - Sizes 7 to 20 (in 0.5 size increments)

The main motif is autumn leaves, which is also the pattern of Kyoka's haori. It is decorated with sky blue topaz and yellow sapphire, inspired by the color of Kyoka's kimono, which reflects her feelings for her master Momiji Ozaki.

The sky blue topaz, which has a calm color but gives off a clear shine, is reminiscent of his cleanliness side.
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Price Silver material (SV925) 25,800 yen,
Platinum material (Pt950) 89,800 yen -
gemstone sky blue topaz
Yellow sapphire (all natural) - Sizes 7 to 20 (in 0.5 size increments)

The motif ``gears'' appears throughout the work. A special item commemorating our 7th anniversary is a three-part gear brooch made from the highest quality gemstones and precious metals.
- Gold x platinum material / limited to 1 item
- Size: approx. 4.5 x 5.5cm
- Material: K18×Pt900
- Weight: approx. 21g
- Main gem: Diamond (INTERNALLY FLAWLESS)
- Accessories: Original jewelry case, guarantee card

An elaborate mechanism with rotating gears
Of the three parts, the two overlapping gears are designed to move like real gears. The people involved in the production are skilled Japanese craftsmen who know everything about precious metal processing, and each part is created one by one and completed by hand.

The diamond set in the center is of the highest quality
Diamonds have a value standard called 4C. Among these, the clarity (=transparency) that affects the beauty of a diamond is carefully selected from high-quality diamonds called INTERNALLY FLAWLESS, a class of diamonds that are rarely used in engagement rings.
Each large and small gear is set with a sapphire and a ruby. The large gear has a diamond in the center and 6 multi-colored sapphires around it, and the smaller gear has 7 brightly colored rubies.



Another gear connected by a chain is set with almandine garnet, London blue topaz, and rhodochrosite. These jewels were chosen from the image colors of Dazai, Akutagawa, and Izumi, and the combination of colorful jewels symbolizes the vivid literary world created by the different styles of works of these three great writers. Even though they are the same type of gemstone, no two are the same in the world, with subtle differences in color and shine, and they have a charm that is shared by humans living in this world.
This is authentic jewelry that only KARATZ, which handles jewelry from all over the world, can deliver.

The moving gears are made of platinum
The small moving gears are all made of Pt900.
Please touch and feel the solid feel and feel that only platinum can provide. The other gears are SV925 plated with K18, allowing you to enjoy the beautiful contrast of platinum and yellow gold.

- Silver material/Limited to 50 items
- Material: SV950
- Size: approx. 4.5 x 5.5cm
- Main gemstone: White sapphire
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Accessories: Original box,
guarantee card
Bungo and Alchemist
7th anniversary gear brooch
exclusive jewelry case

For those who purchase the 7th anniversary brooch, a book-shaped jewelry case with a motif of a book owned by Osamu Dazai will be included.
(*Image is for illustrative purposes only. There may be some differences from the actual product.)

The color of the foil-stamped title for gold and platinum material products and silver material products is different.
Collaboration ring purchaser benefits

For each ring purchased, you will receive one acrylic stand according to the purchased character.
7th anniversary gear brooch
Purchaser benefits

We will be giving away a set of 3 acrylic stands of Osamu Dazai, Ryunosuke Akutagawa, and Kyoka Izumi in civilian clothes. (Only applicable to those who win the lottery sale)
7th anniversary items
[Gold x Platinum material]
Purchase benefits

Those who purchase the 7th anniversary commemorative item [Gold x Platinum material] will receive an acrylic art board with the key visual as a gift.
(Only applicable to those who win the lottery sale)
From November 1st to November 26th
Limited time offer

Those who order Bungo Ring from November 1st (Wednesday) to November 26th (Sunday) will receive one B6 clear file as a gift (the design is random). If you purchase 3 or more Bungo rings, you will receive a complete set of 3 pieces.
*This also applies to purchases made at Shinjuku Marui Main Building 3F conceptshops from November 24th (Friday) to November 26th (Sunday), 2023. The 7th anniversary brooch will be on display from November 24th (Friday) to 26th (Sunday), and the Bungo ring will be on display from November 24th (Friday) to November 30th (Thursday) at Shinjuku Marui Main Building 3F conceptshops. .
All images are for illustrative purposes only.
There may be some differences from the actual product.