![[Available until Fri, Nov 13] Anime "Assassination Classroom" x KARATZ Collaboration Acrylic Stand (6 types in total)](http://store.karatz.jp/cdn/shop/files/ansatsu_akusuta_7.png?v=1764653453&width=1080)
![[10/2 (Fri) 10 PM Restock] Authentic Gemstone Illustrated 3D Stickers Vol. 1: The Five Major Gemstones Edition](http://store.karatz.jp/cdn/shop/files/IMG_3658.jpg?v=1781061036&width=3384)
![[Jeweler's tools] 4-piece set including loupe (10x magnification), tweezers, and 2 loose stones](http://store.karatz.jp/cdn/shop/files/P4130575.jpg?v=1776126091&width=4000)
![[Jeweler's Tools] Color change penlight loose set](http://store.karatz.jp/cdn/shop/files/P1010673_2976de1d-08ce-4d92-94af-524da4485c99.jpg?v=1725605083&width=4000)
[Jeweler's Tools] Color change penlight loose set
Sale price¥4,980
![[Sales end 11/13 (Fri)] Anime "Assassination Classroom" x KARATZ Collaboration Stickers (7 types in total)](http://store.karatz.jp/cdn/shop/files/ansatsu_sticker_8.png?v=1764653463&width=1080)
![[On sale Wednesday, 10/7 at 6:00 PM] "Hell Teacher Nube" x KARATZ Collaboration - Exclusive Illustrated Acrylic Stand](http://store.karatz.jp/cdn/shop/files/1_4c6c968c-6db5-458f-a891-e73749c1a17a.jpg?v=1760422214&width=4500)
Adult Sebonstar Jewelry Vol. 3: Adult Sebonstar Pendant Mirage Edition
Sale priceFrom ¥29,800
Solo "Simple Order Ring Setting"
Sale priceFrom ¥79,800
![[On Sale Wed, Oct 7 at 6:00 PM] "Hell Teacher Nube" x KARATZ Collaboration - Exclusive Illustrated Glitter Can Badge](http://store.karatz.jp/cdn/shop/files/1_24a31620-bd03-4006-98d1-6ef840402ca0.jpg?v=1760421857&width=4500)
!["PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device Image Ring - Enforcer Design [Kogami Shinya Model] "Blue Spinel"](http://store.karatz.jp/cdn/shop/files/ca55ad9a7680a3c3acf9653316704dc3.png?v=1747953942&width=3519)
![[Sales end 11/13 (Fri)] Anime "Assassination Classroom" x KARATZ Collaboration: Karma Akabane Model Ring](http://store.karatz.jp/cdn/shop/files/ansatsu2_bnrB_1_1080x1080_f0a5caf5-70b2-4ca3-98ed-875bc439b1bd.jpg?v=1771996033&width=1080)
![[Available until Friday, Nov 13] 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)
[Option] Certificate issuance fee
Sale price¥2,750
"PSYCHO-PASS" x KARATZ collaboration jewelry: Shogo Makishima razor design ring (amethyst)
Sale priceFrom ¥25,800
![Lab-Grown Diamond (Synthetic Diamond) [HPHT Method] Single Loose Stone (2.0mm, 2.2mm, 2.4mm, 2.6mm) [Multiple Purchase Discounts Available]](http://store.karatz.jp/cdn/shop/products/collage_6be597c0-338c-4671-838a-8b1e66598b68.jpg?v=1681976274&width=4000)
"Initial D" x KARATZ 30th Anniversary Collaboration Acrylic Stand
Sale price¥1,650
!["PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Ginoza Nobuchika Model] "London Blue Topaz"](http://store.karatz.jp/cdn/shop/files/a2355d930e69eb70c83aa0cfa4d17082_e078bd80-e8f1-4c34-910c-d2227b929fcd.png?v=1747953944&width=3519)
Jeweler's tool "plate light"
Sale price¥3,800
Book "Gemstone Encyclopedia" (KARATZ, editor: Keiichiro Koyama)
Sale price¥2,640
![[Jeweler's Tools] White penlight (for loose), loose 3-piece set](http://store.karatz.jp/cdn/shop/files/P1010939_d2032b55-e8e4-4e38-a15d-14d2ee8092f5.jpg?v=1776421761&width=4000)
[Jeweler's Tools] White penlight (for loose), loose 3-piece set
Sale price¥5,980
![[Sales end 11/13 (Fri)] Anime "Assassination Classroom" x KARATZ Collaboration - Can Badge (Complete Set)](http://store.karatz.jp/cdn/shop/files/ansatsu_canbadge_8.png?v=1764653424&width=1080)
"PSYCHO-PASS PROVIDENCE" x KARATZ collaboration character image double pendant
Sale priceFrom ¥25,800
Additional charge: K18YG (base metal) + 10,000 yen
Sale price¥10,000
![[On sale Wednesday, 10/7 at 6:00 PM] "Hell Teacher Nube" x KARATZ Collaboration - Exclusive Illustrated Clear Postcard Set](http://store.karatz.jp/cdn/shop/files/428aad1349d1b6062359ea69c02bc6d8_6a1b25e9-611b-4c68-9588-eedff19a7429.jpg?v=1760420792&width=4500)
Solo (Simple Order Earrings Frame)
Sale price¥29,800
!["PSYCHO-PASS" x KARATZ Collaboration Jewelry: Public Safety Bureau Criminal Investigation Division Device-Inspired Ring with Inspector Design [Tsunemori Akane Model] (Pink Diamond)](http://store.karatz.jp/cdn/shop/files/56c5def9d6dd327eef15171e9337e809.png?v=1747953946&width=3518)
Star Drop "Semi-custom pendant frame"
Sale price¥59,800
Bezel setting (Fukurin) + 5,000 yen
Sale price¥5,000
![[Ends 11/13 (Fri)] Anime "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)
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.