TV anime "Blue Lock" x KARATZ collaboration
About the pop-up store
KARATZ Pop-up in Shinjuku Marui Annex 2F
Period: Friday, December 12th, 2025 to Thursday, December 25th, 2025
Location: Shinjuku Marui Annex 2F
Business hours: Weekdays 11:00-20:00 / Saturdays, Sundays, and holidays 10:30-20:00
*December 18th (Thurs) and December 25th (Thurs) are scheduled to end at 5:30 PM.
・We will be exhibiting actual jewelry and taking orders for it. We will also be able to measure your ring size and try it on, so please feel free to use this service if you are unsure about your ring size.
About online orders
Sales period: December 12th, 2025 (Friday) 22:00
*Sales may end or be suspended once the available number is reached.
● Expected delivery date of jewelry: Purchases made between December 12, 2025 and December 31, 2025: Expected delivery date is late February 2026
・Purchases made after January 2026: Delivery is expected approximately 3 months after purchase
![[Sales start at 10 PM on Friday, December 12th] TV anime "Blue Lock" x KARATZ collaboration second edition layered ring](http://store.karatz.jp/cdn/shop/files/bluelock_bnrB_01_1080x1080_1.jpg?v=1763018217&width=1080)
![[Sales start at 10 PM on Friday, December 12th] TV anime "Blue Lock" x KARATZ collaboration 2nd edition mark pendant](http://store.karatz.jp/cdn/shop/files/bluelock_bnrB_02_1080x1080_a501ffc5-9563-4890-be6e-917d27e99a3a.jpg?v=1763022005&width=1080)
![[Sales start at 10 PM on Friday, December 12th] TV anime "Blue Lock" x KARATZ collaboration first release: Rock ear cuff (single ear)](http://store.karatz.jp/cdn/shop/files/bluelock_bnrB_03_1080x1080_54e9944f-b96d-42fd-b167-3e224b720075.jpg?v=1752207410&width=1080)
![[Sales start at 10 PM on Friday, December 12th] TV anime "Blue Lock" x KARATZ collaboration first edition chain ring](http://store.karatz.jp/cdn/shop/files/bluelock_bnrB_02_1080x1080_a2a5e1bf-7896-4409-a796-fd8d6ff1feb4.jpg?v=1752207424&width=1080)
![[Sales start at 10 PM on Friday, December 12th] TV anime "Blue Lock" x KARATZ collaboration first edition mark ring](http://store.karatz.jp/cdn/shop/files/bluelock_bnrB_01_1080x1080_33d61cee-9f2e-4c79-89ce-34360574e91a.jpg?v=1752207434&width=1080)
[12/12-12/25 Shinjuku Marui Annex] Mark Pendant
Sale price¥16,500
[12/12-12/25 Shinjuku Marui Annex] Layered Ring
Sale price¥16,500
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.