Bicolor Zoisite 2.481ct loose
Sale price¥69,800
Pink zoisite from Tanzania 6.7mm/1.393ct loose (peach tanzanite)
Sale price¥148,000
Cambodian blue zircon (Ratanakiri blue) 3.992ct loose
Sale price¥59,800
Brazilian alexandrite 0.066ct loose (Hemachita mine)
Sale price¥14,800
Brazilian Alexandrite 0.073ct Ruth (Hemachita Mine)
Sale price¥15,800
Brazilian Alexandrite 0.068ct Ruth (Hemachita Mine)
Sale price¥17,800
Brazilian Alexandrite 0.099ct Ruth (Hemachita Mine)
Sale price¥24,800
Brazilian Alexandrite 0.074ct Ruth (Hemachita Mine)
Sale price¥15,800
Brazilian Alexandrite 0.097ct Ruth (Hemachita Mine)
Sale price¥25,800
Brazilian Alexandrite 0.086ct Ruth (Hemachita Mine)
Sale price¥18,800
Brazilian Alexandrite 0.098ct Ruth (Hemachita Mine)
Sale price¥24,800
Colombian pyrite in emerald 7.836ct loose
Sale price¥398,000
Grandidierite 0.206ct loose
Sale price¥22,800
Mali Garnet (Grossular/Andradite Garnet) 4.7mm/0.655ct Loose
Sale price¥14,800
Mali Garnet (Grossular/Andradite Garnet) 4.5mm/0.497ct Loose
Sale price¥9,800
Brazilian lepidocrocite in quartz 2.589ct loose
Sale price¥5,980
Brazilian lepidocrocite in quartz 2.225ct loose
Sale price¥4,980
Brazilian lepidocrocite in quartz 1.621ct loose
Sale price¥3,980
UV type mint garnet 0.435ct loose
Sale price¥5,980
UV type mint garnet 0.521ct loose
Sale price¥6,980
Brazilian Paraiba tourmaline 0.370ct loose (CuO:1.0%, MnO:1.2%)
Sale price¥69,800
Jeremejevite from Namibia 0.056ct loose
Sale price¥15,800
Jeremejevite from Namibia 0.034ct loose
Sale price¥12,800
Jeremejevite from Namibia 0.064ct loose
Sale price¥15,800
Brazilian kyanite in quartz 3.752ct loose
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.266ct loose
Sale price¥29,800
Unheated Brazilian Paraiba tourmaline 0.108ct loose
Sale price¥128,000
Pink zoisite from Tanzania 0.536ct loose Japanese German edition
Sale price¥39,800
Celestite from Madagascar 7.080ct loose Japanese and German
Sale price¥148,000
Musgravite from Myanmar 0.546ct loose Japanese German edition
Sale price¥128,000
British Rosary Fluorite 4.738ct loose
Sale price¥9,800
British Rosary Fluorite 1.841ct loose
Sale price¥5,980
Euclase from Zimbabwe 0.409ct loose
Sale price¥59,800
Paraiba tourmaline from Brazil 0.144ct loose (CuO:0.9%,MnO:2.8%)
Sale price¥55,800
Bicolor tourmaline 0.418ct loose
Sale price¥5,980
Lavender Jade (Jade) 78.496ct Loose Medium Treasure
Sale price¥258,000
Synthetic rutile 2.031ct loose
Sale price¥12,800
Synthetic rutile 6mm/1.061ct loose
Sale price¥8,800
Bekily Blue Garnet from Madagascar (color change garnet) 0.346ct loose
Sale price¥25,800
Brazilian rainbow scapolite 6mm/0.652ct loose
Sale price¥8,800
Brazilian rainbow scapolite 6mm/0.516ct loose
Sale price¥3,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.181ct loose
Sale price¥5,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.008ct loose
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 2.248ct loose
Sale price¥8,980
Hemimorphite from Congo 0.537ct loose
Sale price¥8,800
Hemimorphite from Congo 0.432ct loose
Sale price¥8,800
Oregon Sunstone 0.663ct loose
Sale price¥9,800
Agate 34.143ct Ruth (Druzy Agate)
Sale price¥3,980
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.