Brazilian bicolor tourmaline 0.540ct loose stone
Sale price¥5,980
Brazilian bicolor tourmaline 1.020ct loose stone
Sale price¥15,800
Mexican Opal 4.5mm/0.220ct Loose
Sale price¥5,980
Mexican Fire Opal 8.0mm/1.270ct Loose
Sale price¥29,800
[Sakura Shape] Mexican Opal 2.551ct Loose Patch
Sale price¥59,800
[Rouge cut] Almandine garnet 2.476ct loose stone
Sale price¥9,800
Tanzanian Yellow Beryl 1.750ct Loose Stone
Sale price¥15,800
![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)
Fluorite rough stone from Namibia 5.0 x 6.3 x 2.0cm
Sale price¥12,800
[Takeshi Yamamoto] Bicolor fluorite 15.624ct loose stone
Sale price¥45,800
[Takeshi Yamamoto] Rose quartz 25.017ct loose stone
Sale price¥59,800
[Takeshi Yamamoto] Ametrine 20.856ct loose stone
Sale price¥98,000
[Takeshi Yamamoto] Rock crystal 78.580ct loose stone
Sale price¥98,000
Madagascar Blue Apatite 0.916ct Loose Stone
Sale price¥8,800
Myanmar spinel 0.402ct loose stone
Sale price¥12,800
Myanmar spinel 4.0mm/0.263ct loose stone
Sale price¥7,980
Synthetic Opal (Synthetic Black Opal) 0.723ct Loose
Sale price¥15,800
Synthetic Opal (Synthetic Black Opal) 0.651ct Loose
Sale price¥15,800
Mexican Fire Opal (Faceted) 1.961ct Loose
Sale price¥29,800
Mexican Fire Opal 1.755ct Loose
Sale price¥29,800
Mexican Fire Opal 1.341ct Loose
Sale price¥39,800
Sri Lankan Yellow Sapphire 0.253ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.226ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.272ct Loose (Bicolor)
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.543ct Loose
Sale price¥29,800
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
Indian Moonstone 6.2mm/0.749ct Loose
Sale price¥7,980
Indian Moonstone 8.2mm/1.823ct Loose
Sale price¥14,800
Australian Prehnite 5.398ct loose stone
Sale price¥12,800
Unheated Mozambique Ruby 0.220ct Loose
Sale price¥25,800
Brazilian rutilated quartz (rutile quartz) 12mm/7.140ct loose stone
Sale price¥9,800
Brazilian rutilated quartz (rutile quartz) 12mm/6.709ct loose stone
Sale price¥9,800
Oregon Sunstone from the United States 2.467ct loose stone
Sale price¥9,800
Sri Lankan Chrysoberyl Cat's Eye 0.532ct Loose Stone
Sale price¥5,980
Colombian emerald 3.5mm/0.150ct loose stone
Sale price¥22,800
Brazilian Pink Tourmaline 0.960ct Loose Stone
Sale price¥15,800
Brazilian bicolor tourmaline 0.763ct loose stone
Sale price¥7,980
Brazilian bicolor tourmaline 1.177ct loose stone
Sale price¥12,800
Colombian Trapiche Emerald 1.341ct Loose
Sale price¥6,980
Pakistani Lazurite (Azurite) 0.123ct loose stone
Sale price¥59,800
Paraiba tourmaline from Brazil 0.112ct loose
Sale price¥29,800
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.