Burmese ruby 3.72ct loose GIA/CGL
Sale price¥298,000
[Colorful] K18WG Blood Coral and Diamond (0.19ct) Brooch with certificate
Sale price¥398,000
Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS
Sale price¥258,000
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
South African rhodochrosite 2.477ct loose Japanese-German edition
Sale price¥398,000
Bicolor Paraiba tourmaline 2.477ct loose DGL version
Sale price¥298,000
Colombian trapiche emerald 13.466ct loose
Sale price¥398,000
Angola Green Diamond Rough (Sawable) 0.528ct Rough (with Trigon)
Sale price¥198,000
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Madagascar Pezzottaite 0.670ct Loose Stone, Japan-Germany Scale
Sale price¥298,000
Colombian oil-free emerald 0.510ct loose GIA
Sale price¥598,000
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
Rubellite 7.068ct loose Japanese-German book
Sale price¥498,000
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Sri Lankan Zircon Cat's Eye 23.767ct Loose
Sale price¥398,000
Purple Diamond 0.070ct Loose (FANCY VIVID PINK PURPLE, I-1)
Sale price¥188,000
Bicolor tourmaline 22.088ct loose
Sale price¥298,000
Rhodochrosite 1.884ct loose from Detroit City, USA
Sale price¥188,000
Parasite Peridot (Paracytic Peridot) 0.541ct Loose Japanese-German Edition
Sale price¥256,000
Colombian pyrite in emerald 7.836ct loose
Sale price¥398,000
Brazilian Aquamarine 8.858ct Loose Stone
Sale price¥198,000
[Posted 12543723] Hemimorphite 64.144ct loose
Sale price¥198,000
Brazilian Paraiba tourmaline 0.275ct loose (CuO:1.5%.MnO:2.3%)
Sale price¥398,000
Colombian Euclase 548.00ct rough stone
Sale price¥198,000
Tanzanite 41.690ct loose
Sale price¥2,480,000
Russian oil-free emerald 0.570ct loose stone GIA
Sale price¥298,000
Brazilian bicolor tourmaline 13.927ct loose stone
Sale price¥198,000
Myanmar Musgravite 0.214ct Loose Stone Nikko Kan
Sale price¥258,000
Brazilian Pink Euclase 1.259ct Loose Stone Japan-Germany
Sale price¥398,000
Brazilian bicolor tourmaline 12.842ct loose
Sale price¥298,000
Myanmar Podretteite 0.790ct loose stone
Sale price¥198,000
Colombian pyrite emerald 27.414ct loose stone
Sale price¥298,000
Myanmar bicolor podoretite 1.960ct loose stone
Sale price¥1,000,000
Colombian pyrite in emerald 15.291ct loose
Sale price¥1,000,000
Zimbabwe Bicolor Euclase 0.405ct Loose Stone by Nikkei
Sale price¥298,000
Tanzania Color Change Chrome Tourmaline 13.194ct Loose Stone Chuhokan
Sale price¥398,000
Brazilian Alexandrite 0.519ct loose stone (sugarloaf cut)
Sale price¥358,000
Non-Oil Emerald 1.070ct Loose Gübelin Certificate
Sale price¥698,000
Pt900/Pt850 Australian Black Opal 0.37ct Diamond 0.73ct Necklace
Sale price¥198,000
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.