Burmese red spinel 0.418ct loose
Sale price¥55,800
Sphene 0.590ct loose
Sale price¥3,980
Peach benitoite 0.135ct loose Japanese-German book (orange/blue)
Sale price¥158,000
Paraiba tourmaline from Brazil 0.224ct loose (CuO:0.8%, MnO:1.7%)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.203ct loose (CuO: 0.9%, MnO: 2.6%)
Sale price¥29,800
Rough diamond (makeable) 0.353ct loose
Sale price¥25,800
Rough diamond (makeable) 0.279ct loose
Sale price¥25,800
Bicolor Benitoite 0.624ct Loose Japanese-German Edition
Sale price¥188,000
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥15,800
Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%)
Sale price¥19,800
Brazilian Paraiba tourmaline 0.156ct raw stone (CuO:2.5%, MnO:0.5%)
Sale price¥15,800
Brazilian alexandrite 0.102ct loose
Sale price¥15,800
Brazilian alexandrite 0.091ct loose
Sale price¥15,800
0.466ct Saffron Loose Stone with Certificate of Authenticity
Sale price¥37,800
Padparadscha sapphire 0.220ct loose stone
Sale price¥34,800
Cornflower blue sapphire 0.490ct loose stone
Sale price¥98,000
Pigeon Blood Ruby 0.280ct Loose
Sale price¥49,800
Pigeon Blood Ruby 0.340ct Loose
Sale price¥59,800
[12560244] Bicolor Zoisite 0.508ct Loose Stone
Sale price¥7,980
[12560252] Zambian emerald 0.138ct loose stone
Sale price¥8,800
Red spinel 0.346ct loose stone
Sale price¥22,800
Padparadscha sapphire 0.200ct loose
Sale price¥29,800
Bicolor sapphire 0.334ct loose
Sale price¥9,800
Bicolor sapphire 0.149ct loose
Sale price¥6,980
Bicolor sapphire 0.323ct loose
Sale price¥9,800
Afghanite 0.210ct loose
Sale price¥6,980
Diamond 0.054ct loose (VS class equivalent, emerald cut)
Sale price¥8,800
Hessonite Garnet 0.309ct Loose Stone
Sale price¥4,980
Malaya garnet 0.972ct loose
Sale price¥9,800
Colombian emerald cat's eye 0.112ct loose
Sale price¥9,800
Colombian emerald cat's eye 0.094ct loose
Sale price¥8,800
Paraiba tourmaline from Brazil 0.054ct loose (CuO:1.2%, MnO:3.1%)
Sale price¥15,800
Paraiba tourmaline from Brazil 0.353ct loose (CuO:0.8%, Mn:3.4%)
Sale price¥39,800
Red beryl 0.187ct loose
Sale price¥29,800
White sapphire 0.537ct loose
Sale price¥15,800
White sapphire 0.464ct loose
Sale price¥9,800
White sapphire 0.418ct loose
Sale price¥12,800
Yellow sapphire 0.385ct loose
Sale price¥9,800
White sapphire 0.364ct loose
Sale price¥9,800
White sapphire 0.271ct loose
Sale price¥7,980
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.