0.062ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 2.5%)
Sale price¥47,800
Paraiba tourmaline from Brazil 0.061ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.049ct loose
Sale price¥19,800
Paraiba tourmaline from Brazil 0.018ct loose
Sale price¥12,800
0.093ct Hackmanite from Afghanistan
Sale price¥16,800
Paraiba tourmaline from Brazil 0.071ct loose
Sale price¥19,800
Untreated Color-Change Brazilian Paraiba Tourmaline 0.050ct Loose Stone GIA
Sale price¥128,000
Brazilian Bicolor Euclase 2.4mm/0.051ct Loose Stone
Sale price¥18,800
German Awinite 0.070ct loose stone
Sale price¥29,800
German Awinite 0.056ct loose stone
Sale price¥22,800
Brazilian Paraiba Tourmaline 0.038ct Loose Stone (CuO:1.3%, MnO:2.7%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.041ct Loose (CuO:1.9%, MnO:4.3%)
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.038ct Loose Stone (CuO:1.6%, MnO:2.8%)
Sale price¥45,800
Paraiba Tourmaline from Brazil 0.037ct loose stone (CuO:1.4%, MnO:2.6%)
Sale price¥25,800
Brazilian Paraiba Tourmaline 0.050ct Loose Stone (CuO:1.9%, MnO:3.6%)
Sale price¥39,800
Paraiba Tourmaline from Brazil, 0.039ct loose stone (CuO:1.6%, MnO:2.9%)
Sale price¥35,800
0.035ct loose Brazilian Paraiba Tourmaline (CuO:1.6%, MnO:3.3%)
Sale price¥29,800
Brazilian alexandrite 0.061ct loose
Sale price¥12,800
Brazilian alexandrite 0.058ct loose
Sale price¥11,000
Brazilian alexandrite 0.051ct loose
Sale price¥9,800
Brazilian alexandrite 0.060ct loose
Sale price¥11,000
Brazilian Lazulite 0.052ct Loose Stone with Certificate
Sale price¥32,800
0.056 ct loose Eudialyte from Canada with certificate
Sale price¥15,800
Brazilian Lazuilte (Lazulite) 0.066ct Loose Stone with Certificate
Sale price¥39,800
Zimbabwean Euclase 0.058ct loose stone
Sale price¥29,800
Zimbabwean Euclase 0.088ct loose stone
Sale price¥49,800
Russian Alexandrite 2.5mm/0.078ct Loose Stone
Sale price¥49,800
Diamond 0.042ct loose (VS class equivalent, emerald cut)
Sale price¥6,980
Jeremejevite 0.073ct Loose Stone from Namibia with Identification Report
Sale price¥15,800
Pink Diamond 2.1mm/0.034ct Loose (FANCY PURPLE PINK, I-1)
Sale price¥34,800
Pink Diamond (Treated) 0.095ct Loose (FANCY VIVID PURPLISH PINK, SI1)
Sale price¥26,800
0.079ct Loose Brazilian Paraiba Tourmaline (CuO: 1.6% MnO: 2.8%)
Sale price¥29,800
Paraiba Tourmaline Loose Stone from Brazil 0.068ct (CuO: 1.1% MnO: 0.1%)
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.2% MnO:1.2%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.4% MnO:1.1%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.051ct Loose Stone (CuO:1.1% MnO:0.6%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.048ct (CuO:1.5% MnO:1.0%)
Sale price¥35,800
Green tourmaline 0.090ct loose stone
Sale price¥5,980
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
Nigerian Cobalt Garnet 0.095ct Loose with Certificate
Sale price¥18,800
Brazilian Lazulite 0.067ct Loose with certificate
Sale price¥39,800
Brazilian Lazulite 0.035ct Loose Stone with Certificate
Sale price¥24,800
Brazilian alexandrite 0.070ct loose
Sale price¥39,800
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
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.