Green tourmaline 0.621ct loose stone
Sale price¥9,800
Green tourmaline 0.457ct loose stone
Sale price¥8,800
Bicolor tourmaline 1.198ct loose
Sale price¥12,800
Brazilian Paraiba tourmaline in quartz 0.819ct loose
Sale price¥14,800
Iridescent Tourmaline 3.107ct Loose Stone
Sale price¥37,800
Green tourmaline 0.090ct loose stone
Sale price¥5,980
Bicolor tourmaline 0.423ct loose
Sale price¥12,800
Bicolor tourmaline 0.552ct loose
Sale price¥12,800
Bicolor tourmaline 0.548ct loose
Sale price¥6,980
Green tourmaline 0.637ct loose
Sale price¥8,800
Zambian Canary Yellow Tourmaline 0.158ct Loose Stone
Sale price¥9,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥12,800
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
Bicolor Paraiba tourmaline 2.477ct loose DGL version
Sale price¥298,000
[Rouge Cut] Pink Tourmaline from Brazil 0.440ct Loose
Sale price¥9,800
Brazilian Blue Tourmaline 0.819ct Loose Stone
Sale price¥31,800
Brazilian Paraiba tourmaline in quartz 1.602ct loose
Sale price¥39,800
Brazilian Blue Tourmaline in Quartz 9.251ct Loose Stone
Sale price¥39,800
Brazilian Blue Tourmaline in Quartz 3.379ct Loose Stone
Sale price¥15,800
Green tourmaline 1.687ct loose
Sale price¥12,800
Pink tourmaline 0.669ct loose
Sale price¥8,800
Bicolor Tourmaline 9.0mm/2.507ct Loose
Sale price¥29,800
Green tourmaline 3.334ct loose
Sale price¥25,800
Green tourmaline 6.069ct loose (marron cut) Japanese-German book
Sale price¥69,800
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥45,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥35,800
Pink Tourmaline from Brazil 6.782ct Loose
Sale price¥69,800
Zambian bicolor tourmaline 4.142ct loose stone
Sale price¥98,000
Tourmaline 0.731ct loose
Sale price¥5,980
Green tourmaline 2.007ct loose
Sale price¥29,800
Green tourmaline 0.388ct loose
Sale price¥8,800
Green tourmaline 1.258ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.129ct loose (Cu:0.6%,MnO:0.9%)
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
Paraiba tourmaline from Mozambique 1.057ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.117ct loose
Sale price¥39,800
Brazilian indicolite tourmaline 0.691ct loose stone
Sale price¥19,800
Brazilian indicolite tourmaline 0.674ct loose stone
Sale price¥14,800
Brazilian indicolite tourmaline 0.386ct loose stone
Sale price¥9,800
Brazilian indicolite tourmaline 0.842ct loose stone
Sale price¥15,800
Ubaite/dravite tourmaline 3.157ct rough stone
Sale price¥6,980
Brazilian green tourmaline 1.233 ct loose stone
Sale price¥69,800
Paraiba tourmaline from Mozambique 0.270ct loose
Sale price¥18,800
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.