![[Yukinko Cut] Siberian Blue Quartz (Synthetic Quartz) 0.999ct Loose Stone](http://store.karatz.jp/cdn/shop/files/20260201_P2058911_47088e74-c0b2-4b11-97b3-b28ba02df0ed.jpg?v=1771020380&width=2996)
![[Sakura In-Cut] Sapphire from Ratnapura, Sri Lanka, 6.0mm/0.839ct Loose](http://store.karatz.jp/cdn/shop/files/collage_7ab487c3-3173-4149-b4c1-85a3f2bef3bb.png?v=1760166578&width=2250)
![[Sakura In-Cut] Tanzanite from Tanzania 6.0mm/0.774ct Loose Stone](http://store.karatz.jp/cdn/shop/files/P8296713_23d503d4-c6c3-4986-a7a9-02eeb87cd8e5.jpg?v=1768176307&width=3298)
![[On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 5.4mm/0.771ct Loose Stone from Tenkawa Village, Nara Prefecture](http://store.karatz.jp/cdn/shop/files/PC042513.jpg?v=1765589719&width=4000)
![[On Sale at 10 PM on December 9th] American Peridot 0.855ct Loose Stone (Lily Pad Inclusions)](http://store.karatz.jp/cdn/shop/files/PC042970.jpg?v=1765631710&width=4000)
![[12/10 22:00] Mali Garnet (Grossular/Andradite Garnet) 1.008ct Loose Stone from the Republic of Mali with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PC031988.jpg?v=1765589363&width=4000)
![[Sakura In-Cut] Tibetan Andesine 6.0mm/0.631ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC240657.jpg?v=1769909135&width=4000)
![[Sakura In-Cut] Mongolian Color Change Andesine 6.0mm/0.655ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC240511_999dac6d-5929-47d3-bac6-fb5d3f71b923.jpg?v=1767309485&width=3249)
![[Dandelion Cut] Madagascar Sphene 0.950ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC251538.jpg?v=1767750125&width=4000)
![[Dandelion Cut] Madagascar Sphene 6.0mm/0.775ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC251496.jpg?v=1769168704&width=4000)
![[Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.685ct Loose](http://store.karatz.jp/cdn/shop/files/PC251256_0508040a-035b-45e1-bd57-e3f12fff88e1.jpg?v=1767910815&width=3356)
![[Sakura In-Cut] Mali Garnet (Grossular/Andradite Garnet) from the Republic of Mali, 6.0mm/0.920ct Loose Stone with Certificate of Authenticity](http://store.karatz.jp/cdn/shop/files/PC250997.jpg?v=1767748956&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.