![[Sales End 8/20 (Thu)] Anime "Assassination Classroom" x KARATZ Collaboration Clear Card (Complete Set)](http://store.karatz.jp/cdn/shop/files/ansatsu_clearcard_8.png?v=1764653490&width=1080)
![[Sales end on 8/20 (Thu)] "Assassination Classroom" x KARATZ Collaboration Can Badge (Complete Set)](http://store.karatz.jp/cdn/shop/files/ansatsu_canbadge_8.png?v=1764653424&width=1080)
![[Sales end on Thursday, August 20] "Assassination Classroom" x KARATZ Collaboration Acrylic Keychain (5 types, random)](http://store.karatz.jp/cdn/shop/files/ansatsu_akukey_7.png?v=1764653396&width=1080)
![[Sales End on Thursday, August 20] Anime Assassination Classroom x KARATZ Collaboration Acrylic Keychain (1 type)](http://store.karatz.jp/cdn/shop/files/ansatsu_akukey_1.png?v=1756101686&width=1080)
Goethite in quartz 1.020ct loose
Sale price¥2,980
![[Sales end on 8/20 (Thu)] "Assassination Classroom" x KARATZ Collaboration Acrylic Stand (6 designs)](http://store.karatz.jp/cdn/shop/files/ansatsu_akusuta_7.png?v=1764653453&width=1080)
Prehnite 0.818ct loose stone
Sale price¥3,980
Synthetic Moissanite 0.491ct loose stone
Sale price¥4,980
Montana Sapphire 1.9mm/0.033ct loose
Sale price¥4,980
Andalusite from Sri Lanka 0.408ct loose
Sale price¥3,980
Andalusite from Sri Lanka 0.361ct loose
Sale price¥3,980
[12541081 published] Emerald 9.380ct rough stone
Sale price¥4,980
Myanmar Purple Spinel 0.312ct Loose Stone
Sale price¥3,980
Mexican cantera opal 8.454ct loose
Sale price¥3,980
Green tourmaline 0.305ct loose stone
Sale price¥3,980
Diaspore 0.660ct loose
Sale price¥3,980
Diaspore 0.657ct loose
Sale price¥3,980
Diaspore 0.672ct loose
Sale price¥3,980
Myanmar Maw Sisit 0.855ct loose stone (Maw Sisit)
Sale price¥4,980
Madagascar Apatite 0.371ct Loose Stone
Sale price¥2,980
Spanish Andalusite 4mm/0.204ct loose stone (rose cut)
Sale price¥4,980
Brazilian Madeira Citrine 6.8mm/1.150ct Loose Stone
Sale price¥4,980
![[Limited to 6 stones] Contains 2 stones in total: 1 gemstone (rough stone) that is actually featured in a gemstone encyclopedia + 1 emerald rough stone.](http://store.karatz.jp/cdn/shop/files/collage_5fd345f1-1646-43a1-b347-1e83dd089a63.png?v=1751925957&width=2000)
Mexican Fire Opal 0.448ct Loose
Sale price¥3,980
Garden quartz 8.690ct loose
Sale price¥2,980
Book "Gemstone Encyclopedia" (KARATZ, editor: Keiichiro Koyama)
Sale price¥2,640
Brazilian Garden Quartz 15.7mm/12.860ct Loose Stone
Sale price¥4,980
![[Jeweler's Tools] Limited Quantity: H&C (Hearts & Cupids) Scope, CZ Size Comparison 10 Pieces, 2-Piece Set](http://store.karatz.jp/cdn/shop/files/collage_93cd8b3a-e07f-44c4-a6d0-5eb2f01d53f0.png?v=1743666964&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.