Green tourmaline 2.007ct loose
Sale price¥29,800
Green tourmaline 0.388ct loose
Sale price¥8,800
Paraiba tourmaline from Brazil 0.162ct loose
Sale price¥69,800
Brazilian Sunstone 5.1mm/0.532ct Loose Stone (Rose Quartz)
Sale price¥5,980
Brazilian Sunstone 6.2mm/0.896ct Loose (Rose Quartz)
Sale price¥5,980
Brazilian Medusa Quartz (Paraiba Quartz) 3.9mm/0.237ct Loose
Sale price¥15,800
Green tourmaline 1.258ct loose
Sale price¥29,800
Green tourmaline 0.389ct loose
Sale price¥8,800
Paraiba tourmaline from Brazil 0.039ct loose (CuO:1.5%, MnO:2.0%)
Sale price¥24,800
Paraiba tourmaline from Brazil 0.032ct loose (CuO:2.2%, MnO:1.8%)
Sale price¥25,800
Paraiba tourmaline from Brazil 0.062ct loose (CuO:1.4%, MnO:1.5%)
Sale price¥39,800
Pyrite in quartz 3.492ct loose
Sale price¥8,800
Pyrite in quartz 15.971ct loose
Sale price¥12,800
Paraiba tourmaline from Brazil 0.117ct loose
Sale price¥39,800
Brazilian Lazurite (Celestite) 0.281ct Ruth Japanese-German Edition
Sale price¥118,000
Rubellite 7.068ct loose Japanese-German book
Sale price¥498,000
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Brazilian indicolite tourmaline 0.691ct loose stone
Sale price¥19,800
Brazilian indicolite tourmaline 0.386ct loose stone
Sale price¥9,800
Brazilian indicolite tourmaline 0.750ct loose stone
Sale price¥15,800
Brazilian dumortierite in quartz 0.993ct loose (faceted cut)
Sale price¥7,980
Brazilian green tourmaline 1.233 ct loose stone
Sale price¥69,800
Paraiba tourmaline from Brazil 3.5mm/0.278ct loose
Sale price¥29,800
Brazilian green tourmaline 4.345ct loose stone
Sale price¥69,800
Brazilian Blue Tourmaline 0.827ct Loose Stone
Sale price¥19,800
Brazilian Dumortierite in Quartz 0.382ct Loose Stone
Sale price¥9,800
Brazilian Pyrite in Quartz 4.153ct Loose Stone
Sale price¥11,000
Brazilian Pyrite in Quartz 6.992ct Loose Stone
Sale price¥18,800
![Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available]](http://store.karatz.jp/cdn/shop/files/PC190060_c4f87b12-3b41-4e2d-a32f-2338f4edfd21.jpg?v=1766651520&width=4000)
Pink tourmaline 0.205ct loose
Sale price¥4,980
Goshenite 1.620ct loose
Sale price¥15,800
Brazilian kyanite in quartz 13.740ct loose
Sale price¥29,800
Montebrasite 0.373ct loose
Sale price¥8,800
Brazilian Medusa Quartz (Paraiba Quartz) 10.298ct loose
Sale price¥7,980
Brazilian Medusa Quartz (Paraiba Quartz) 5.809ct loose
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 3.441ct loose
Sale price¥3,980
Brazilian Medusa Quartz (Paraiba Quartz) 2.757ct loose
Sale price¥3,980
![[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052301_931dfc6c-1047-4bdf-821f-203298615d94.jpg?v=1765588004&width=2810)
[12/7 22:00] Brazilian Dumortierite in Quartz 16.250ct Loose Stone
Sale price¥9,800
![[12/7 22:00] Brazilian Rubellite 0.332ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC052669.jpg?v=1765587579&width=4000)
[12/7 22:00] Brazilian Rubellite 0.332ct Loose Stone
Sale price¥12,800
![[12/9 22:00] Brazilian Lavender Quartz (Scorolite) 0.994ct Loose Stone](http://store.karatz.jp/cdn/shop/files/PC043009.jpg?v=1765631801&width=4000)
Brazilian Dumortierite in Quartz 1.131ct Loose Stone
Sale price¥12,800
Brazilian green tourmaline 0.821ct loose stone
Sale price¥12,800
Dendritic Agate 31.019ct Ruth Japanese/German
Sale price¥6,980
Brazilian Euclase 1.240ct loose
Sale price¥19,800
Brazilian green tourmaline 3.102ct loose stone
Sale price¥69,800
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.