![[Sales end 7/31] "Bungo and Alchemist" x KARATZ Collaboration Jewelry Vol. 4: Bungo Ring [Takiji Kobayashi Model Ring] - Limited Time Purchase Bonus Included](http://store.karatz.jp/cdn/shop/files/bungou_pt4_bnr_03c_1080x1080_3452dba7-b9d7-4d95-805d-90a51ce343fa.jpg?v=1779787564&width=1080)
![[Sales end 7/31] "Bungo and Alchemist" x KARATZ Collaboration Jewelry Vol. 4: Bungo Ring [Takiji Kobayashi Model Ring] - Limited Time Purchase Bonus Included](http://store.karatz.jp/cdn/shop/files/IMG_3310.jpg?v=1779789588&width=3000)
![[Sales end 7/31] "Bungo and Alchemist" x KARATZ Collaboration Jewelry Vol. 4: Bungo Ring [Takiji Kobayashi Model Ring] - Limited Time Purchase Bonus Included](http://store.karatz.jp/cdn/shop/files/main_kobayashi.jpg?v=1779788982&width=3000)
![[Sales end 7/31] "Bungo and Alchemist" x KARATZ Collaboration Jewelry Vol. 4: Bungo Ring [Takiji Kobayashi Model Ring] - Limited Time Purchase Bonus Included](http://store.karatz.jp/cdn/shop/files/02_kobayashi.jpg?v=1779788984&width=3000)
![[Sales end 7/31] "Bungo and Alchemist" x KARATZ Collaboration Jewelry Vol. 4: Bungo Ring [Takiji Kobayashi Model Ring] - Limited Time Purchase Bonus Included](http://store.karatz.jp/cdn/shop/files/03_kobayashi.jpg?v=1779788991&width=3000)
[Sales end 7/31] "Bungo and Alchemist" x KARATZ Collaboration Jewelry Vol. 4: Bungo Ring [Takiji Kobayashi Model Ring] - Limited Time Purchase Bonus Included
To commemorate the 8th anniversary of "Bungo and Alchemist" in a collaborative project, we have created three types of jewelry models: Chuuya Nakahara, Ango Sakaguchi, and Takiji Kobayashi, chosen from the top 12 out of a total of 82 characters in a jewelry character poll.
【Features of the collaboration jewelry】
◎Uses natural gemstones, including those directly sourced by gem appraisers from around the world.
◎Each piece of jewelry is meticulously crafted by skilled Japanese artisans.
【Sales Period】
May 28, 2026 (Thursday) 22:00 ~ July 31, 2026 (Friday) 23:59
*Sales may end or be suspended once the maximum number of items available for sale is reached.
*Estimated delivery date: Late September 2026
Click here for the special page
~"Bungo and Alchemist" Bungo Ring - Takiji Kobayashi Model~

【Product Specifications】
| Material | Silver (SV925 & Rhodium) Platinum (Pt950) |
| Price (incl. tax) | ¥25,800 (Silver) ¥98,000 (Platinum) |
| Gemstones Used | Green Sapphire (2.0mm) ×1 Iolite (1.0mm) ×1 Ruby (1.2mm) ×1 |
| Size | 7 to 20 (can be specified in 0.5 increments) 6.0mm (front width), 1.6mm (back width) |
【Jewelry Case】
For each piece of jewelry purchased, a special jewelry case will be included.
Size: Approximately 6.5cm × 6.5cm × 5.0cm
【Ring Purchase Bonus】
For each Bungo ring purchased, you will receive one acrylic stand. The character for the bonus will correspond to the purchased character.
Size: Approximately 10cm in height

【Limited-Time Purchase Bonus】
For each ring purchased (Chuuya Nakahara model, Ango Sakaguchi model, or Takiji Kobayashi model) during the period, you will receive one acrylic card. The character for the bonus will correspond to the purchased character.
Period: May 28, 2026 (Thursday) 22:00 ~ July 31, 2026 (Friday) 23:59
Size: Approximately 8cm × 6cm
"Bungo and Alchemist" × KARATZ Collaboration
View all items
【Notes】
・All images are for illustration purposes only.
・All sizes are approximate. Slight errors may occur.
・Due to the nature of natural stones, there may be differences in color from the samples. Please be assured that each gemstone is inspected one by one to ensure the integrity of the design.
■Regarding Estimated Shipping Date
・Delivery period is an estimate only.
・Delivery period may change due to manufacturing circumstances.
■Regarding Payment Methods
The following payment methods are available at KARATZ STORE:
Credit card payment / Convenience store payment / Bank transfer / Rakuten Pay / Apple Pay / Google Pay / PayPay / d払い / Merpay / Paidy (post-payment) / Alipay / AlipayHK / WeChat Pay / PayPal
■Regarding Resizing of Silver Material
Silver material cannot be resized.
■Regarding Resizing of Platinum Material
Platinum material can be resized for a fee.
If you wish to resize after product arrival, please contact us via inquiry. Providing your name and order number will help us process your request smoothly.
karatz_ID: bungo_40000440
©︎2016 EXNOA LLC
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