Adult Sebonstar (Sebonstar x KARATZ collaboration jewelry)
About the Pop-Up Store
KARATZ Pop-up in Shinjuku Marui Annex 2F
Period: Friday, December 19th, 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
*The event is scheduled to end at 5:30 PM on Thursday, December 25th.
● Handling contents: Exhibition and order acceptance of the first series of Adult Sebon Star
・Exhibition and order acceptance of adult Sebonstar Mirage models
About online orders
Sales period: December 10, 2025 (Wed) 22:00 to January 18, 2026 (Sun) 23:59
*Sales may end or be suspended once the available number is reached.
* Estimated delivery date: Mid-April to early May 2026. This may vary.
![[Sales start at 10 PM on Wednesday, December 10th] Sebon Star Jewelry for Adults, Part 3: Sebon Star Pendant for Adults, Mirage Edition (Silver Model/Precious Model)](http://store.karatz.jp/cdn/shop/files/P8061894.jpg?v=1761201097&width=4000)
![[Sales start at 10pm on Wednesday, December 10th] Adult Sebon Star Adjuster Charm](http://store.karatz.jp/cdn/shop/files/P9170504.jpg?v=1738627942&width=4000)
![[Sales End on Sunday, November 30th] Adult Sebon Star Jewelry Series 3: Heart Key Lock Pendant, Silver Model (Silver/Gold Color), SV925](http://store.karatz.jp/cdn/shop/files/PA078307_bd775702-6b2b-4562-860d-2e9c582a7986.jpg?v=1762047939&width=4000)
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.