Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥9,800
Amazon Green Opal 0.285ct Loose (Faceted Cut)
Sale price¥6,980
Amazonian green opal 0.517ct loose stone (faceted cut)
Sale price¥8,800
Amazon Green Opal 0.814ct Loose (Faceted Cut)
Sale price¥8,800
Brazilian pink tourmaline 1.458ct loose stone
Sale price¥39,800
Sri Lankan glass body (sapphire crystal) 10.140ct rough stone
Sale price¥29,800
Sri Lankan glass body (sapphire crystal) 7.983ct rough stone
Sale price¥29,800
Brazilian Euclase 0.224ct Loose Stone (Bicolor Euclase)
Sale price¥18,800
Flower rutilated quartz 0.955ct loose stone
Sale price¥9,800
Brazilian rutilated quartz (rutilated quartz) 8.247ct loose stone
Sale price¥14,800
Zimbabwean Blue Apatite (UV type) 1.056ct loose stone
Sale price¥15,800
Tanzania Purple Zoisite Rough Stone 1.160ct
Sale price¥8,800
American Red Beryl 0.106ct Loose
Sale price¥24,800
Australian Shell Opal (Shell Opal) 73.321ct Rough Stone
Sale price¥49,800
Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline)
Sale price¥298,000
Brazilian Green Tourmaline 26.071ct Loose Stone (Sugarloaf Cut)
Sale price¥298,000
Colombian pyrite emerald 13.691ct loose stone
Sale price¥398,000
Tanzania Bicolor Zoisite 0.397ct Loose Stone
Sale price¥8,800
Tanzanite from Tanzania 0.262ct loose stone
Sale price¥8,800
Russian rough diamond (sawable) 0.098ct loose
Sale price¥24,800
Colombian Trapiche Emerald 0.299ct Loose
Sale price¥16,800
Colombian Trapiche Emerald 0.372ct Loose
Sale price¥19,800
Tanzanian bicolor tanzanite rough stone 2.750ct
Sale price¥9,800
Brazilian Paraiba Tourmaline 0.821ct rough stone
Sale price¥39,800
Brazilian Dolomite 4.070ct Loose Stone, Japan-Germany Mirror
Sale price¥98,000
Brazilian Paraiba Tourmaline 0.200ct loose stone (CuO: 1.7%, MnO: 2.8%)
Sale price¥98,000
Brazilian Goshenite 0.771ct loose stone
Sale price¥6,980
American Herkimer Diamond 5.6mm/0.516ct Loose
Sale price¥9,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.945ct Loose Stone
Sale price¥24,800
Mexican Cantera Opal 4.835ct Loose
Sale price¥19,800
Detroit City Rhodochrosite 4mm/0.439ct Loose Stone
Sale price¥8,800
Paraiba Tourmaline from Brazil, 0.034ct Loose (CuO: 1.8%, MnO: 2.4%)
Sale price¥29,800
Paraiba Tourmaline from Brazil 0.067 ct loose (CuO: 1.4%, MnO: 2.4%)
Sale price¥45,800
Ethiopian Opal 5.2mm/0.688ct Loose (Sphere)
Sale price¥6,980
Brazilian Paraiba Tourmaline 0.037ct Loose (CuO:1.9%, MnO:2.3%)
Sale price¥39,800
Manganotantalite 0.736ct loose stone from Japan and Germany
Sale price¥158,000
Bicolor Fluorite 6.1mm/0.869ct Loose Stone
Sale price¥6,980
Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange
Sale price¥128,000
Pakistani Lazurite (Azurite) 0.305ct Loose Stone
Sale price¥49,800
Bicolor Euclase from Zimbabwe 0.033ct loose
Sale price¥28,800
Russian diamond rough (sawable) 0.094ct rough
Sale price¥24,800
Brazilian Paraiba Tourmaline 0.759ct rough stone
Sale price¥45,800
Zimbabwean Blue Apatite (UV Type) 1.019ct Loose
Sale price¥14,800
Mozambique Pink Tourmaline 1.122ct Loose Stone (Contains CuO)
Sale price¥39,800
Montana Sapphire 0.331ct Loose (Bi-Color Sapphire)
Sale price¥8,800
Montana Sapphire 0.405ct Loose (Green Sapphire)
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.