Afghanite 0.333ct loose stone from Afghanistan, Japan-Germany
Sale price¥8,800
Afghanite 0.447ct loose stone from Afghanistan, Japan-Germany
Sale price¥8,800
Namibian Jeremejevite 0.194ct loose stone by Nikkei
Sale price¥15,800
Burmese unheated ruby 0.245ct loose stone by Nikkei
Sale price¥39,800
Brazilian Bicolor Tourmaline 16.088ct Loose (Tricolor) Nikkei
Sale price¥298,000
Brazilian Bicolor Pink Euclase 0.236ct Loose Stone, Japan-Germany
Sale price¥128,000
Bicolor Benitoite 0.601ct Loose Japanese-German Edition
Sale price¥458,000
Cassiterite 1.658ct loose stone (bicolor cassiterite) Japan-Germany exchange
Sale price¥128,000
Manganotantalite 0.736ct loose stone from Japan and Germany
Sale price¥158,000
Brazilian Dolomite 4.070ct Loose Stone, Japan-Germany Mirror
Sale price¥98,000
Canadian Catapleite 0.298ct Loose Stone, Japan-Germany Mirror
Sale price¥49,800
Brazilian Yellow Beryl 11.411ct Loose Stone, Japan-Germany Exchange
Sale price¥25,800
South African Rhodochrosite 0.990ct Loose Stone by Nikkei
Sale price¥128,000
Zimbabwe Bicolor Euclase 0.152ct Loose Stone by Nikkei
Sale price¥158,000
Congo Carolite 6.2mm/1.481ct Loose Stone Japan-Germany Scale
Sale price¥29,800
Namibian Dioptase 0.134ct Loose Stone, Japan-Germany Mirror
Sale price¥59,800
Tasmanian Crocoite 0.292ct Loose Stone, Japan-Germany Exchange
Sale price¥98,000
American Benitoite 4.8mm/0.396ct Loose Stone by Nikkei
Sale price¥298,000
American Bicolor Benitoite 0.358ct Loose Stone by Nikkei
Sale price¥298,000
Namibian Jeremejevite 0.307ct loose stone by Nikkei
Sale price¥22,800
Pakistani Clinohumite 1.440ct Loose Stone, Japan-Germany Exchange
Sale price¥29,800
Purple zoisite from Tanzania 1.103ct loose Japanese German edition
Sale price¥98,000
Sri Lankan Enstatite 2.567ct Loose Stone, Japan-Germany Exchange
Sale price¥19,800
[12552038] Beryl Cat's Eye 32.703ct Loose Stone
Sale price¥98,000
[12552306] Iolite 14.158ct loose stone
Sale price¥258,000
Brazilian Indigolite Tourmaline 7.002ct Loose Stone, Japan-Germany Exchange
Sale price¥198,000
Sri Lankan Cobalt Spinel 0.676ct Loose Stone (Blue Spinel) Nikkei
Sale price¥79,800
Sri Lankan Purple Spinel 1.638ct Loose Stone, Japan-Germany Exchange
Sale price¥69,800
Rainbow Quartz (Iridescent Quartz) 0.256ct Loose Stone, Japan-Germany
Sale price¥98,000
Non-Oil Emerald 0.555ct Loose Stone by Nikkei
Sale price¥288,000
[Dandelion Cut] K18PG Yellow Sapphire 1.927 Ring Japanese-German Edition
Sale price¥298,000
Dioptase from Namibia 0.150ct loose Japanese-German book
Sale price¥59,800
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥29,800
Blue Garnite from Nigeria 0.514ct Ruth Japanese-German Edition
Sale price¥59,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥9,800
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.