Brazilian Paraiba Tourmaline 0.200ct loose stone (CuO: 1.7%, MnO: 2.8%)
Sale price¥98,000
Russian rough diamond (sawable) 0.098ct loose
Sale price¥24,800
American Red Beryl 0.106ct Loose
Sale price¥24,800
American benitoite 0.074ct loose
Sale price¥8,800
Russian rough diamond (sawable) 0.125ct loose
Sale price¥29,800
Brazilian Euclase 0.224ct Loose Stone (Bicolor Euclase)
Sale price¥18,800
Zimbabwe Bicolor Euclase 0.152ct Loose Stone by Nikkei
Sale price¥158,000
Brazilian Green Tourmaline 0.182ct Loose Stone
Sale price¥8,800
Namibian Jeremejevite 0.307ct loose stone by Nikkei
Sale price¥22,800
Madagascar Yellow Sapphire 0.283ct Loose
Sale price¥6,980
American Benitoite 0.084ct loose stone (colorless Benitoite)
Sale price¥12,800
Brazilian Alexandrite 0.069ct loose stone (princess cut)
Sale price¥17,800
Brazilian Alexandrite 0.068ct loose stone (princess cut)
Sale price¥17,800
Brazilian Alexandrite 0.072ct loose stone (princess cut)
Sale price¥18,800
Paraiba tourmaline from Brazil 0.154ct loose
Sale price¥29,800
Russian rough diamond (sawable) 0.088ct loose
Sale price¥22,800
Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥12,800
Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
Sri Lankan Yellow Sapphire 0.267ct Loose
Sale price¥14,800
Colombian mint color emerald 0.297ct loose stone
Sale price¥9,800
[Updated 12552163] Benitoite 0.099ct loose stone
Sale price¥34,800
American Red Beryl 0.132ct Loose
Sale price¥33,800
Russian rough diamond (sawable) 0.117ct loose
Sale price¥29,800
Russian rough diamond (sawable) 0.101ct loose
Sale price¥25,800
South African diamond rough (sawable) 0.110ct rough
Sale price¥25,800
South African diamond rough (sawable) 0.091ct rough
Sale price¥22,800
Brazilian alexandrite 0.120ct loose
Sale price¥15,800
Brazilian Alexandrite 0.106ct Loose Stone (Silky Alexandrite)
Sale price¥15,800
Brazilian alexandrite 0.116ct loose
Sale price¥15,800
Tanzanian Kornerupine 0.199ct loose stone
Sale price¥19,800
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.