![[Koshu Precious Stones plusthree] Bicolor Fluorite 5.030ct Loose Stone](http://store.karatz.jp/cdn/shop/products/5030ct-716009.jpg?v=1770176973&width=989)
![[Koshu Precious Stones Plusthree] Sri Lankan Hessonite Garnet 0.99ct Loose Color "Collaboration" Patch](http://store.karatz.jp/cdn/shop/files/099ct-663728.jpg?v=1745883466&width=1038)
![[Sales end on Sunday, May 10] Anime "Assassination Classroom" x KARATZ Collaboration - Irina Jelavic Model Ring](http://store.karatz.jp/cdn/shop/files/ansatsu2_bnrB_5_1080x1080_43830397-3927-489b-8774-fb32721de233.jpg?v=1771996031&width=1080)
![[Sales end on Friday, April 18th] TV anime "I'd Rather Be Someone Else in the Next Life" x KARATZ collaboration Miyama Kirishima model launched](http://store.karatz.jp/cdn/shop/files/1__1080x1080_3d960cc3-c9a5-4828-b367-58cc860b0746.png?v=1738627898&width=4500)
![[Sales end May 10 (Sun)] Anime "Assassination Classroom" x KARATZ Collaboration - Kaede Kayano Model Ring](http://store.karatz.jp/cdn/shop/files/ansatsu2_bnrB_3_1080x1080_583619a3-3f89-4665-b3bd-1c85e910a491.jpg?v=1771996031&width=1080)
![[Sales end on Sunday, May 10] Anime "Assassination Classroom" x KARATZ Collaboration - Tadaomi Karasuma Model Ring](http://store.karatz.jp/cdn/shop/files/ansatsu2_bnrB_4_1080x1080_0cd8a74b-4c0d-44b1-bdee-0854cd074e06.jpg?v=1771996031&width=1080)
![Pt850 Platinum Red Bean Chain (Azuki) Long Necklace 0.9mm/1.1mm [60cm free]](http://store.karatz.jp/cdn/shop/products/pt850-11mm-717417_1800x1800_2b2f757a-ddef-4a78-a4ac-4868605d4bf8.jpg?v=1633141005&width=1800)
![[Sales End on Thursday, October 31st] "Given the Movie: Hiiragi Mix" x KARATZ Collaboration Jewelry Sato Mafuyu Model](http://store.karatz.jp/cdn/shop/files/20240311142203.jpg?v=1738627863&width=1200)
![[Sakura Shape Jewelry] Hanaboshi (double hanging necklace)](http://store.karatz.jp/cdn/shop/files/PA084213.jpg?v=1738627916&width=4000)
![[Sales end on Sunday, May 10] Assassination Classroom x KARATZ Collaboration - Koro-sensei Model Ring](http://store.karatz.jp/cdn/shop/files/ansatsu_bnrC_2_1080x1080_5a04ae14-e1e5-4855-aaff-92dce1dc2205.jpg?v=1760620220&width=1080)
![[Sales End May 5 (Tue)] TV Anime "2.5 Dimensional Seduction" x Jewelry Store KARATZ Collaboration Ring](http://store.karatz.jp/cdn/shop/files/2point5d_bnrB1_a_1080x1080_1.jpg?v=1770889973&width=1080)
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.