Pink Diamond (Treated) 0.095ct Loose (FANCY VIVID PURPLISH PINK, SI1)
Sale price¥26,800
Pink Diamond 0.074ct Loose (FANCY LIGHT PURPLE PINK, I-1)
Sale price¥39,800
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 2.3mm/0.060ct loose
Sale price¥6,980
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
Auinite 2.4mm/0.064ct loose
Sale price¥8,800
Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2)
Sale price¥39,800
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Benitoite from the USA, 0.064ct loose
Sale price¥29,800
German Apatite 0.048ct Loose Stone
Sale price¥19,800
German Hauyne 2.2mm/0.035ct Loose Stone
Sale price¥18,800
Brazilian Paraiba tourmaline 0.065ct loose (CuO:2.0%, MnO:2.6%)
Sale price¥22,800
American oil-free red beryl 2.6mm/0.050ct loose GIA
Sale price¥79,800
Russian Alexandrite 0.091ct Loose Stone
Sale price¥69,800
0.076ct Loose Madagascar Bekily Blue Garnet (Color Change Garnet)
Sale price¥9,800
0.097ct Grandidierite Loose Stone from Madagascar
Sale price¥29,800
Paraiba tourmaline from Brazil 0.097ct loose
Sale price¥22,800
Colombian emerald 3.1mm/0.093ct loose stone
Sale price¥22,800
Canadian rough diamond (sawable) 0.096ct rough with trigon
Sale price¥29,800
Benitoite 0.091ct loose (emerald cut)
Sale price¥25,800
Silky diamond 2.7mm/0.086ct loose
Sale price¥9,800
Silky diamond 2.8mm/0.097ct loose
Sale price¥9,800
American benitoite 0.076ct loose
Sale price¥19,800
American benitoite 0.074ct loose
Sale price¥18,800
American benitoite 0.069ct loose
Sale price¥19,800
Colombian emerald 0.091ct loose stone
Sale price¥15,800
German Hauyne 2.7mm/0.076ct Loose Stone
Sale price¥29,800
American benitoite 0.097ct loose
Sale price¥24,800
American benitoite 0.098ct loose
Sale price¥25,800
Purple Diamond 0.070ct Loose (FANCY VIVID PINK PURPLE, I-1)
Sale price¥188,000
Diamond 0.052ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
American red beryl 2.9mm/0.094ct loose
Sale price¥29,800
Cobalt spinel from Vietnam 2mm/0.031ct loose Japanese-German edition
Sale price¥59,800
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.