![Limited to 9 stones [Mr. Sanjay] Oil in quartz, spinel, yellow opal 1 loose stone (damaged) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/P2220131_50010af8-99af-424d-9d1b-6ade6dc62a7a.jpg?v=1708595324&width=4000)
![[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 May 10th (Sunday)] Assassination Classroom x KARATZ collaboration Koro-sensei Five Great Gems Figure 《Limited to 100 units》](http://store.karatz.jp/cdn/shop/files/ansatsu_bnrC_1_1080x1080_1be8ed3d-7a10-47a1-9508-85a22ed9b825.jpg?v=1760620266&width=1080)
![[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)
![Limited to 14 stones: One loose Mozambique hot pink sapphire (pear-shaped, approximately 4 x 3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P1010380_b8f4e8df-e135-458b-8f10-fc4f411d34e2.jpg?v=1760236878&width=4000)
![[Sales End Tuesday, May 5] TV Anime "2.5 Dimensional Seduction" x KARATZ Gemstone Specialty Store Collaboration Acrylic Keychain](http://store.karatz.jp/cdn/shop/files/OEM-20251224-ACK-01.jpg?v=1770347009&width=800)
![[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)
![Limited to 6 stones: Brazilian dendritic quartz (new to Tucson, average 2.5 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/2_2234e2f9-8a38-45bf-b31c-4a7e59ad39ee.png?v=1771634563&width=1080)
![[Sales End April 30th (Thu)] Anime "Overlord" x KARATZ Jewelry Store Collaboration Albedo [Bardiche] Figurine 《Limited Quantity》](http://store.karatz.jp/cdn/shop/files/5a09df31545a39674f87587e2f29c899.jpg?v=1772582921&width=4500)
![Jeremejevite Gacha with a 0.22ct Loose Stone Worth 55,800 JPY [Limited to 10 Stones] [Multiple Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/collage_2aa2720f-ccb3-4901-8d34-215af44736e4.png?v=1782950742&width=3000)
![[On Sale 5/30 at 10 PM] "Limited 9 Stones" Blue Gem Gacha 💎 Brazilian Paraiba Tourmaline (CuO: 2.2%, MnO: 3.5%), Top Color Benitoite, Hauyne, Apatite (Multi-purchase discount available)](http://store.karatz.jp/cdn/shop/files/18_c5e5ca5d-4d72-418e-8435-1936874f3631.png?v=1776385897&width=1890)
![[On sale May 10th, 10 PM JST] 《Limited 4 Stones》Madagascar Pezzottaite Loose Stone (Round Cut, approx. 3mm) cut by Mr. Sanje 《Multi-purchase discount available》](http://store.karatz.jp/cdn/shop/files/P5070774.jpg?v=1778310124&width=4000)
![[Sales begin June 12 at 10 PM JST] Blue Gem Gacha 💎 Featuring Brazilian Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) normally priced at 35,800 JPY, Zimbabwean Euclase, and more! 《Bulk purchase discounts available》](http://store.karatz.jp/cdn/shop/files/32.png?v=1779063779&width=4000)
![[On sale July 5th, 10 PM JST] 《Limited 13 Stones》Unique Diamond Gacha - Including 1ct+ diamonds, round cut, rose cut, and fluorescent diamonds (with a bonus London Blue Diamond stone!) 《Multiple Purchase Discount Available》](http://store.karatz.jp/cdn/shop/files/55.png?v=1782905573&width=1890)
![Yuichiro Abe Goods Set [Mug & Compact Mirror]](http://store.karatz.jp/cdn/shop/files/collage_7a9ccfa1-e0e2-4501-b754-d0b408e831c1.jpg?v=1687846081&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.