![Limited to 10 stones: Paraiba Tourmaline Gacha 💎 Paraiba Tourmaline or Paraiba Tourmaline in Quartz (1 loose stone) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/18_261a657f-9dba-46a6-9a8b-1805ad2c5b57.png?v=1760745196&width=4000)
![Limited to 10 stones: London Blue Diamond Gacha Loose Stone (including 3.6mm, VS-SI grade equivalent, treated) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PA170328.jpg?v=1760920536&width=4000)
![Limited to 10 stones: Madagascar pink sapphire (heart-shaped, including padparadscha color, approximately 3 x 2.3 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/P2260117_bfdad9b4-dc20-47f8-b354-e35ab71ff879.jpg?v=1772593440&width=4000)
![[On sale May 16th at 10 PM JST] Limited to 10 stones! Cat Cut Gacha 💎 Tourmaline, Opal, Chalcedony, etc. (Includes a bonus mini-mini cat cut stone) (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/28_bc4803b4-5e4e-4a51-b5c9-60df2c8819e2.png?v=1778377827&width=1890)
![[Limited to 7 stones] Oregon Sunstone from the United States (cabochon cut, average 1.5ct) [Multiple purchase discount available]](http://store.karatz.jp/cdn/shop/files/collage_aaa7a0c3-17e0-460a-8609-f11fcce374ed.png?v=1741995367&width=2000)
![[Jeweler's Tools] Limited Edition Chelsea Color Filter Emerald 2-Piece Set](http://store.karatz.jp/cdn/shop/files/collage_057412df-b83f-456f-b7c8-ff5d87550e46.png?v=1743666005&width=4000)
![Limited to 9 stones: One loose Brazilian rainbow aquamarine (oval cut, average 0.8 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_60dc3c4e-56f7-4fd7-a18c-f0d43b2fb29e.png?v=1754965065&width=2000)
![Limited to 10 stones: Tanzanite rough stone gacha including bicolor pink tanzanite rough stones (average 4.2 carats) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/collage_5799e77a-97c8-4d6c-b77b-dec5271cc0a0.png?v=1762053625&width=2250)
![[On Sale April 18th, 10 PM JST] [Limited 9 Stones] Tosa Blood Coral Branch (Raw Coral) 1 Stone (March Birthstone, Coral, Average 7ct) [Bulk Purchase Discount Available]](http://store.karatz.jp/cdn/shop/files/P1010020_2e43750c-2330-442e-bec8-19480c9aafad.jpg?v=1776333256&width=4000)
![[On sale May 3rd at 10 PM] Limited to 9 stones! Color-shifting amethyst gacha, including a 3.49ct konpeito cut by Makoto Nakano (normally 22,800 yen) and a Sanje-cut stone. (Multiple purchase discount available)](http://store.karatz.jp/cdn/shop/files/16_96dab937-7bec-4aeb-8c3a-dbd3ada3274e.png?v=1776320385&width=1890)
![[On sale June 8th, 10 PM JST] "Limited to 12 Stones" Garnet Gacha with 8mm Dandelion Cut Rhodolite Garnet (Normally 39,800 yen) "Multiple Purchase Discount Available"](http://store.karatz.jp/cdn/shop/files/43_a7f6b113-3868-4517-a3ff-ed758e3d8035.png?v=1780534972&width=1890)
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.