Bicolor sapphire 0.080ct loose stone
Sale price¥8,800
Brazilian Alexandrite 2.8mm/0.100ct Loose Stone
Sale price¥19,800
South African diamond rough (sawable) 0.083ct rough
Sale price¥32,800
Brazilian Alexandrite 0.052ct loose stone
Sale price¥9,800
South African diamond rough (sawable) 0.087ct rough
Sale price¥34,800
Colombian emerald 0.126ct loose stone
Sale price¥15,800
Brazilian Alexandrite 2.9mm/0.123ct loose stone
Sale price¥29,800
Russian Demantoid Garnet 2.5mm/0.111ct Loose Stone
Sale price¥18,800
Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.170ct Loose
Sale price¥17,800
Bekiri Blue Garnet (Color Change Garnet) from Madagascar 0.160ct Loose
Sale price¥16,800
Brazilian Alexandrite 2.7mm/0.090ct Loose Stone JTL Catalog
Sale price¥22,800
Brazilian Alexandrite 0.072ct Loose Stone JTL Catalog
Sale price¥12,800
South African diamond rough (sawable) 0.096ct rough (with trigon)
Sale price¥39,800
Tanzanian Blue Spinel 0.165ct Loose Stone
Sale price¥8,800
Namibian Jeremejevite 0.046ct loose stone
Sale price¥8,800
Jeremejevite from Namibia 0.037ct loose
Sale price¥6,980
Namibian Jeremejevite 2.3mm/0.063ct loose stone
Sale price¥12,800
Grandidierite from Madagascar 2.7mm/0.102ct loose stone
Sale price¥25,800
South African diamond rough (sawable) 0.112ct rough
Sale price¥44,800
South African diamond rough (sawable) 0.091ct rough (trigon)
Sale price¥35,800
Zimbabwe Bicolor Euclase 2.6mm/0.087ct Loose Stone
Sale price¥55,800
Zimbabwean Euclase 0.039ct loose stone
Sale price¥22,800
Zimbabwean Euclase 0.063ct loose stone
Sale price¥39,800
Euclase from Zimbabwe 0.046ct loose
Sale price¥29,800
Zimbabwean Euclase 0.032ct loose stone
Sale price¥15,800
Zimbabwean Euclase 0.029ct loose stone
Sale price¥19,800
Russian Demantoid Garnet (Horsetail certified) 2.4mm/0.066ct loose stone
Sale price¥12,800
Brazilian Alexandrite 0.073ct loose stone (princess cut)
Sale price¥16,800
Brazilian Alexandrite 0.089ct loose stone (princess cut)
Sale price¥19,800
Madagascar sapphire 0.153ct loose stone
Sale price¥6,980
Madagascar sapphire 0.157ct loose stone
Sale price¥6,980
Madagascar sapphire 0.158ct loose stone
Sale price¥7,980
Madagascar sapphire 0.157ct loose stone
Sale price¥7,980
German Awinite 0.076ct loose stone
Sale price¥18,800
Brazilian Euclase 0.116ct loose stone (bicolor Euclase)
Sale price¥25,800
Brazilian Lazurite (Azurite) 0.052ct loose stone
Sale price¥16,800
Brazilian alexandrite 0.081ct loose
Sale price¥16,800
Diamond 0.128ct loose stone (cabochon cut, maroon cut)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.047ct loose
Sale price¥29,800
Brazilian Paraiba Tourmaline 0.068ct loose stone
Sale price¥39,800
Paraiba tourmaline from Brazil 0.071ct loose
Sale price¥39,800
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.