Adult Sebonstar (Sebonstar x KARATZ collaboration jewelry)
place: Shinjuku Marui Annex 1F
Opening hours: 11:00-20:00 *Until 17:30 on the last day *Open from 10:30 on Saturdays and Sundays only 👉 For details, please see the 3rd special page Please see
*The quantity available in stores is limited.
*If the planned sales quantity is exceeded, orders will only be accepted.
*The Charmy Premium Model <Royal Blue Sapphire>, available for lottery sale, will also be on display.
![[Lottery Sales Page] Adult Sebon Star 3rd Edition Charmy Premium Model <Royal Blue Sapphire> (Sales Price: 1,580,000 yen)](http://store.karatz.jp/cdn/shop/files/P8072527.jpg?v=1761093998&width=4000)
![[Sales Start November 21st at 10 PM] Sebon Star Jewelry for Adults, Part 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)
![[Sales Start November 21st at 10 PM] Sebon Star Jewelry for Adults, No. 3 Heart Key Lock Pendant, Precious Model (Platinum/Gold) Pt950/K18YG/K18PG](http://store.karatz.jp/cdn/shop/files/PA078307_2123680b-0e41-4868-a4e8-0d3379cedcc5.jpg?v=1762298053&width=4000)
![[Sales Start November 21st at 10 PM] Sebonstar Jewelry for Adults, No. 3 Charmy Pact Ring, Silver Model (Silver/Gold Color), SV925](http://store.karatz.jp/cdn/shop/files/PA067498_211f7317-ec9c-484c-9b13-a44ef1bd0bf1.jpg?v=1762048893&width=4000)
![[Sales start at 10 PM on November 21st] Sebonstar Jewelry for Adults, No. 3 Charmy Pact Ring, Precious Model (Platinum/Gold) Pt950/K18YG/K18PG](http://store.karatz.jp/cdn/shop/files/PA067498_085f46a8-30f9-4c0a-aa5b-ba86eb8620de.jpg?v=1762304991&width=4000)
![[Available at 10:00 PM on November 21, 2025] Adult Sebon Star Adjuster Charm (Not available for individual purchase)](http://store.karatz.jp/cdn/shop/files/P9170504.jpg?v=1738627942&width=4000)
![[Sales start at 10 PM on December 10th] Sebonstar Jewelry for Adults, Part 3: Sebonstar 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 10 PM on December 10th] Adult Sebon Star 1st Edition Pendant Silver Model (SV925)](http://store.karatz.jp/cdn/shop/files/4b20f821b247baeba4e6ddc6a353084f.jpg?v=1738627851&width=4000)
![[Sales start at 10 PM on December 10th] Adult Sebonstar 1st Ring Silver Model (SV925)](http://store.karatz.jp/cdn/shop/files/9b191a7aeacff3846bad816850f883eb.jpg?v=1738627858&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.