Russian Diopside 0.402ct Loose Stone
Sale price¥8,800
Burmese Red Spinel 3.6mm/0.216ct Loose Stone
Sale price¥8,800
Chrysoprase 3.108ct loose stone
Sale price¥8,800
Chrysoprase 2.959ct loose stone
Sale price¥8,800
Chrysoprase 3.003ct loose stone
Sale price¥9,800
Pakistani Oil in Quartz 0.442ct Loose Stone
Sale price¥9,800
Congo Dioptase 29.012ct rough stone
Sale price¥5,980
Congo Dioptase 24.371ct rough stone
Sale price¥9,800
Congo Dioptase 24.892ct rough stone
Sale price¥9,800
Brazilian bicolor tourmaline 0.644ct loose stone
Sale price¥9,800
Silky sapphire from Sri Lanka 0.975ct loose
Sale price¥8,800
Blue sapphire 3.9mm/0.279ct loose stone
Sale price¥9,800
Blue sapphire 3.9mm/0.260ct loose stone
Sale price¥8,800
Rutile Inphenakite from Madagascar 0.825ct loose stone
Sale price¥7,980
Rutile Inphenakite from Madagascar 0.967ct loose stone
Sale price¥8,800
Brazilian Dendritic Quartz 4.645ct Loose Stone
Sale price¥9,800
Brazilian Dendritic Quartz 3.990ct Loose Stone
Sale price¥9,800
Brazilian Dendritic Quartz 3.376ct Loose Stone
Sale price¥8,800
Brazilian dendritic quartz 2.381ct loose stone
Sale price¥7,980
Brazilian dendritic quartz 2.174ct loose stone
Sale price¥6,980
Cambodian colorless zircon 0.676ct loose stone (orange fluorescence)
Sale price¥6,980
Brazilian Quartz (Striped Quartz) 15.019ct Loose Patch
Sale price¥8,800
Brazilian Petalite 0.615ct loose stone
Sale price¥6,980
Sri Lankan Green Zircon 0.456ct Loose Stone
Sale price¥6,980
Blue beryl (Macis beryl) 0.199ct loose stone
Sale price¥9,800
Blue beryl (Macis beryl) 0.162ct loose stone
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.221ct Loose
Sale price¥9,800
Indian Moonstone 1.105ct Loose
Sale price¥8,800
Mexican Fire Opal (Faceted Cut) 0.352ct Loose
Sale price¥9,800
Brazilian Blue Tourmaline 0.650ct Loose
Sale price¥9,800
Afghanite from Afghanistan 0.250ct loose stone
Sale price¥6,980
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
African Tourmaline 0.711ct Loose Stone
Sale price¥5,980
Italian Leucite 0.287ct loose stone (play of color)
Sale price¥9,800
Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2
Sale price¥8,800
Hackmanite from Afghanistan, 27.410ct rough stone
Sale price¥9,800
Brazilian bicolor tourmaline 0.540ct loose stone
Sale price¥5,980
Mexican Opal 4.5mm/0.220ct Loose
Sale price¥5,980
[Rouge cut] Almandine garnet 2.476ct loose stone
Sale price¥9,800
![Tanzanian Dravite rough stone 24.5 x 10.5 x 7.7 mm [Gemstone Encyclopedia]](http://store.karatz.jp/cdn/shop/files/P1010325_2e629dc7-2020-4b62-a17c-029286482b85.jpg?v=1731062614&width=4000)
Madagascar Blue Apatite 0.916ct Loose Stone
Sale price¥8,800
Myanmar spinel 4.0mm/0.263ct loose stone
Sale price¥7,980
Sri Lankan Yellow Sapphire 0.253ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.226ct Loose
Sale price¥8,800
Blue beryl (Macis beryl) 3.5mm/0.152ct loose stone
Sale price¥8,800
Blue Beryl (Macisi Beryl) 3.6mm/0.176ct loose stone
Sale price¥8,800
Blue Beryl (Macisi Beryl) 3.5mm/0.158ct 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.
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.