Pink tourmaline 0.466ct loose
Sale price¥8,800
Bicolor tourmaline 1.329ct loose
Sale price¥9,800
Bicolor tourmaline 0.429ct loose
Sale price¥6,980
Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut)
Sale price¥8,800
Pink tourmaline 0.819ct loose
Sale price¥15,800
Pink tourmaline 0.539ct loose stone (heart shape)
Sale price¥12,800
Bicolor Tourmaline 0.792ct Loose (Heart Shape)
Sale price¥9,800
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥29,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥9,800
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
Bicolor Paraiba tourmaline 2.477ct loose DGL version
Sale price¥228,000
Brazilian Paraiba tourmaline in quartz 1.602ct loose
Sale price¥49,800
Brazilian Paraiba tourmaline in quartz 0.819ct loose
Sale price¥15,800
Watermelon tourmaline 3.403ct loose
Sale price¥5,980
Watermelon tourmaline 3.250ct loose
Sale price¥5,980
Pink tourmaline 0.656ct loose
Sale price¥8,800
Tourmaline 0.731ct loose
Sale price¥6,980
Yellow tourmaline 0.277ct loose
Sale price¥8,800
Green tourmaline 1.687ct loose
Sale price¥15,800
Pink tourmaline 0.669ct loose
Sale price¥9,800
Green tourmaline 2.007ct loose
Sale price¥29,800
Green tourmaline 2.144ct loose
Sale price¥25,800
Bicolor Tourmaline 9.0mm/2.507ct Loose
Sale price¥29,800
Green tourmaline 3.334ct loose
Sale price¥25,800
Green tourmaline 0.559ct loose
Sale price¥6,980
Pink tourmaline 0.632ct loose
Sale price¥9,800
Pink tourmaline 1.575ct loose
Sale price¥14,800
Pink tourmaline 0.341ct loose
Sale price¥8,800
Green tourmaline 0.388ct loose
Sale price¥8,800
Green tourmaline 1.258ct loose
Sale price¥29,800
Green tourmaline 6.069ct loose (marron cut) Japanese-German book
Sale price¥69,800
Paraiba tourmaline from Brazil 0.129ct loose (Cu:0.6%,MnO:0.9%)
Sale price¥29,800
Bicolor tourmaline 3.242ct rough stone from Afghanistan
Sale price¥9,800
Green tourmaline 0.389ct loose
Sale price¥9,800
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
Paraiba tourmaline from Mozambique 0.240ct loose
Sale price¥35,800
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥55,800
Paraiba tourmaline from Mozambique 0.130ct loose
Sale price¥22,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥39,800
Blue tourmaline 0.369ct loose Japanese-German book
Sale price¥8,800
Paraiba tourmaline from Mozambique 0.083ct loose
Sale price¥6,580
Paraiba tourmaline from Mozambique 0.089ct loose
Sale price¥7,980
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Indigolite tourmaline 0.691ct loose
Sale price¥18,800
Indigolite tourmaline 0.674ct loose
Sale price¥9,800
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.