Kenyan Gold Sheen Sapphire 3.6mm/0.302ct Loose Stone
Sale price¥35,800
Kenyan Gold Sheen Sapphire 3.5mm/0.273ct Loose Stone
Sale price¥22,800
Kenyan Gold Sheen Sapphire 4.0mm/0.305ct Loose Stone (Rose Cut)
Sale price¥12,800
Kenyan Gold Sheen Sapphire 3.9mm/0.298ct Loose (Rose Cut)
Sale price¥12,800
Kenyan Gold Sheen Sapphire 0.308ct Loose
Sale price¥12,800
Brazilian Bicolor Pink Euclase 0.236ct Loose Stone, Japan-Germany
Sale price¥128,000
American Benitoite 1.8mm/0.159ct loose stone (gradation)
Sale price¥39,800
Brazilian bicolor tourmaline 0.326ct loose stone
Sale price¥8,800
Brazilian Green Tourmaline 0.350ct Loose
Sale price¥9,800
American red beryl 0.092ct loose
Sale price¥19,800
Brazilian Lazurite (Azurite) 0.071ct loose stone
Sale price¥22,800
Brazilian Lazurite (Azurite) 0.052ct loose stone
Sale price¥16,800
Brazilian bicolor euclase 0.233ct loose stone
Sale price¥24,800
Brazilian bicolor euclase 0.212ct loose stone
Sale price¥15,800
Brazilian bicolor euclase 0.239ct loose stone
Sale price¥18,800
Brazilian bicolor euclase 0.157ct loose stone
Sale price¥14,800
Brazilian bicolor euclase 0.291ct loose stone
Sale price¥15,800
Brazilian Euclase 0.117ct Loose Stone
Sale price¥12,800
Umba Sapphire (Tanzania) 0.182ct loose stone
Sale price¥7,980
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.365ct Loose Stone
Sale price¥18,800
Diamond 0.128ct loose stone (cabochon cut, maroon cut)
Sale price¥39,800
Tanzanian Kornerupine 0.202ct loose stone
Sale price¥18,800
Namibian Jeremejevite 0.405ct loose stone
Sale price¥128,000
Namibian Jeremejevite 0.394ct loose stone
Sale price¥128,000
Colombian emerald 0.191ct loose
Sale price¥22,800
Colombian emerald 0.231ct loose stone
Sale price¥28,800
Pakistani Veirinite 0.072ct loose stone
Sale price¥19,800
Pakistani Veirinite 0.107ct loose stone
Sale price¥29,800
Zimbabwean Apatite (UV type) 0.209ct loose stone
Sale price¥4,980
Pakistani Oil in Quartz 0.283ct Loose Stone
Sale price¥7,980
Pakistani Oil in Quartz 0.328ct Loose Stone
Sale price¥8,800
Tanzanian Kornerupine 0.453ct loose stone
Sale price¥24,800
Violet Sapphire 4.3mm/0.328ct Loose
Sale price¥15,800
Pink sapphire 4.5mm/0.390ct loose stone
Sale price¥15,800
Purple sapphire 4mm/0.273ct loose stone
Sale price¥12,800
Yellow Sapphire 4.0mm/0.266ct Loose
Sale price¥12,800
Pink sapphire 0.271ct loose stone
Sale price¥8,800
Montana Sapphire 0.405ct Loose (Green Sapphire)
Sale price¥9,800
Montana Sapphire 0.331ct Loose (Bi-Color Sapphire)
Sale price¥8,800
Russian diamond rough (sawable) 0.094ct rough
Sale price¥24,800
Bicolor Euclase from Zimbabwe 0.033ct loose
Sale price¥28,800
Pakistani Lazurite (Azurite) 0.305ct Loose Stone
Sale price¥49,800
Brazilian Paraiba Tourmaline 0.037ct Loose (CuO:1.9%, MnO:2.3%)
Sale price¥39,800
Paraiba Tourmaline from Brazil 0.067 ct loose (CuO: 1.4%, MnO: 2.4%)
Sale price¥45,800
Paraiba Tourmaline from Brazil, 0.034ct Loose (CuO: 1.8%, MnO: 2.4%)
Sale price¥29,800
Detroit City Rhodochrosite 4mm/0.439ct Loose Stone
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.