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Adult Sebonstar (Sebonstar x KARATZ collaboration jewelry)


About the Pop-up Store

KARATZ Pop-up at Shinjuku Marui Annex 1F
Period: May 28, 2026 (Thu) - June 3, 2026 (Wed)
Location: Shinjuku Marui Annex 1F
Business Hours: Weekdays 11:00 AM - 8:00 PM / Weekends & Holidays 10:30 AM - 8:00 PM
*Scheduled to close at 5:30 PM on June 3 (Wed).

● Items available
・Exhibition and pre-order acceptance for Adult Sebonstar Vol. 3
・Exhibition and pre-order acceptance for Adult Sebonstar Mirage Models

About Online Orders

Sales Period: May 28, 2025 (Thu) 10:00 PM - June 30, 2026 (Wed) 11:59 PM
*Sales may end or be suspended once the maximum quantity available for sale is reached.
*Estimated delivery date: Late October 2026. This date is subject to change.


KARATZ Custom Made

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.

KARATZ・Five Commitments

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.