[Sales end on 11/13 (Fri)] Anime "Assassination Classroom" x KARATZ Collaboration Irina Jelavic Model Ring

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

Click here for the full product lineup


【Dedication to Collaboration Jewelry】
・We use high-quality gemstones carefully selected by expert jewelry buyers.
・As a jewelry specialist, we select stones based on the colors and meanings associated with each character and finish them with the delicate craftsmanship of domestic artisans.

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

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


- Irina Jelavić Model Ring -
A ring designed with Irina Jelavić in mind.
To express her femininity and alluring charm, it has been crafted as a delicate 2-piece ring set.
The design is inspired by Irina’s necklace and outfits, with the curves of the ring forming elegant lines reminiscent of a dress neckline.
Set with yellow sapphires and yellow diamonds, it adds glamour and sophistication.
Wear them layered for a glamorous look, or individually for a subtle touch.
This special piece of jewelry allows you to enjoy it according to your mood, capturing Irina’s splendor and strength.

【Product Specifications】

【Maintenance】

・Gently wipe off sweat and dirt with a soft cloth. If necessary, rinse lightly with water or lukewarm water and dry.
・When using a microfiber cloth, please be careful; if hard dust or sand is attached to the cloth, it may scratch the jewelry.
・Avoid using abrasive cloths, silver-specific cleaners, or cleaning solutions, as these may cause the plating to peel off.

【Precautions】

・All images are for illustrative purposes only.
・All sizes are approximate and may vary slightly.
・Due to the nature of natural stones, there may be slight differences in color compared to samples. Rest assured, we inspect every gemstone individually to ensure the integrity of the design.

■ About Shipping
・Delivery dates are estimates only.
・Delivery times may shift due to 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 / Pay-later (Paidy) / Alipay / AlipayHK / WeChat Pay

■ About Resizing Silver Jewelry
Silver material cannot be resized.

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