Watermelon tourmaline 44.201ct Ruth Japanese-German book
Sale price¥398,000
Paudlettite 0.375ct loose Japanese-German book
Sale price¥298,000
Zircon 2.219ct loose (with crystals) Japanese-German edition
Sale price¥19,800
Rutilated Quartz (Rutilated Quartz) 82.385ct Loose Stone, Japan-Germany
Sale price¥29,800
【9/7 22時販売】【甲州貴石切子】K18ローズクォーツ15.964ct ネックレス 日独鑑
Sale price¥128,000
【9/5 22時販売】ブラジル産ルベライト 2.115ctルース 日独鑑
Sale price¥79,800
【9/7 22時販売】タンザニア産マグネシオアキシナイト 0.357ctルース 日独鑑
Sale price¥39,800
【9/6 22時販売】タンザニア産マグネシオアキシナイト 0.380ctルース 日独鑑
Sale price¥39,800
Emerald 15.219ct loose Japanese-German book
Sale price¥298,000
Aragonite 2.088ct loose Japanese-German book
Sale price¥25,800
Afghanite 0.496ct loose Japanese-German book
Sale price¥9,800
Brazilian Pink Imperial Topaz 2.794ct Loose Japanese-German Edition
Sale price¥128,000
Peach benitoite 0.135ct loose Japanese-German book (orange/blue)
Sale price¥158,000
Bicolor Benitoite 0.624ct Loose Japanese-German Edition
Sale price¥188,000
Larimar 33.829ct loose Japanese-German book
Sale price¥39,800
Colombian oil-free emerald 0.535ct loose Japanese-German edition
Sale price¥248,000
Taaffeite from Myanmar 0.805ct loose Japanese-German edition
Sale price¥45,800
Sri Lankan Rhodolite Garnet 0.244ct Loose Stone, Japan-Germany Scale
Sale price¥8,800
Orange calcite 0.740ct loose stone by Nikkei
Sale price¥9,800
Zircon Cat's Eye from Sri Lanka 2.087ct Ruth Japanese-German Edition
Sale price¥39,800
Nigerian Cobalt Garnite 0.175ct Loose Stone, Japan-Germany Exchange
Sale price¥35,800
Bulgarian green sphalerite 1.052ct loose Japanese-German edition
Sale price¥128,000
Nigerian Blue Garnite 0.794ct Loose Stone, Japan-Germany Exchange
Sale price¥79,800
Nigerian Cobalt Garnite 0.216ct Loose Stone, Japan-Germany Exchange
Sale price¥45,800
Myanmar Musgravite 0.214ct Loose Stone Nikko Kan
Sale price¥258,000
Brazilian Bicolor Tourmaline 4.554ct Ruth Japanese-German Edition
Sale price¥298,000
American Red Beryl 0.200ct Loose (Heart Shape) Nikkeikan
Sale price¥35,800
Congo Andesine 18.643ct Loose Stone Japan-Germany Exchange
Sale price¥69,800
Euclase from Colombia 5.223ct Ruth Japanese German edition
Sale price¥198,000
Pt950 Sri Lankan cobalt spinel 0.697ct ring by Nikkei
Sale price¥98,000
Euclase from Colombia 2.443ct Ruth Japanese German edition
Sale price¥148,000
Euclase from Brazil 0.210ct Ruth Japanese German edition
Sale price¥29,800
Brazilian Pink Imperial Topaz 1.511ct Loose Japanese-German Edition
Sale price¥69,800
Namibian Jeremejevite 0.153ct loose stone by Nikkei
Sale price¥15,800
Namibian Jeremejevite 0.118ct loose stone by Nikkei
Sale price¥12,800
Brazilian Pink Imperial Topaz 0.909ct Loose Japanese-German Edition
Sale price¥39,800
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.