[Sales end 11/13 (Fri)] Anime "Assassination Classroom" x KARATZ Collaboration: Karma Akabane Model Ring

To commemorate the 10th anniversary of the "Assassination Classroom" TV anime, the jewelry specialty store KARATZ is launching its second collaboration collection. We are introducing authentic rings that capture the world of the series through gemstones.

View the product list here


【Collaboration Jewelry Highlights】
・We use high-quality gemstones carefully selected by expert gem buyers.
・As a jewelry specialty store, we select stones based on the colors and meanings associated with each character, finished with the delicate craftsmanship of local artisans.

Sales Period: Until Friday, November 13, 2026
※Sales may end early or be temporarily suspended once the available stock limit is reached.

Expected Delivery Date:
Scheduled for delivery around mid-December 2026
※As these are made-to-order, delivery times may vary depending on production status.


-Karma Akabane Model Ring-
A design ring inspired by Karma Akabane. Drawing inspiration from his striking red hair and sharp presence, we have combined deep Almandine Garnet with cool Black Spinel.
The band features sharp engravings reminiscent of a knife, expressing Karma's sense of danger and speed.
The "Class 3-E" engraving is included to subtly incorporate the world of the series.
It is a cool, Karma-esque ring that embodies both strength and beauty.

【Product Specifications】

【Care Instructions】

・Gently wipe away sweat and dirt with a soft cloth. If necessary, wash lightly with water or lukewarm water and dry.
・When using a microfiber cloth, please be careful as any grit or sand on the cloth may cause scratches.
・Avoid using abrasive cloths or silver-specific cleaners and solutions, as these can cause the plating to peel off.

【Notes】

・All images are for illustrative purposes only.
・Sizes are approximate and may have slight variations.
・Due to the nature of natural stones, there may be color differences compared to the samples. Rest assured that we inspect each gemstone individually to ensure the final product maintains the intended look of the series.

■ About Shipping Date
・The shipping period is only an estimate.
・Shipping times may vary depending on production circumstances.


■ About Payment Methods
The following payment methods are available at the KARATZ STORE:
Credit Card / Convenience Store Payment / Bank Transfer / Apple PAY / Google Pay / PayPay / d-Barai / Merpay / Paidy Later Payment / Alipay / AlipayHK / WeChat Pay

■ About Resizing Silver Items
Silver items cannot be resized.

karatz_ID:ansatsu_40000383

©Yusei Matsui/Shueisha, Anime "Assassination Classroom" Production Committee 2025