Brazilian bicolor tourmaline 1.148ct loose
Sale price¥15,800
Brazilian bicolor tourmaline 1.056ct loose
Sale price¥12,800
Brazilian bicolor tourmaline 0.877ct loose
Sale price¥12,800
Rough diamond (makeable) 0.185ct loose (VS-SI)
Sale price¥19,800
Rough diamond (makeable) 0.345ct loose (VS-SI equivalent)
Sale price¥29,800
Sunstone (Illusion Sunstone) 0.844ct Loose
Sale price¥8,800
Sunstone (Illusion Sunstone) 0.895ct loose stone
Sale price¥8,800
Sri Lankan star sapphire 1.323ct loose
Sale price¥3,980
Sri Lankan star sapphire 1.061ct loose
Sale price¥3,980
Bicolor tourmaline 5.825ct loose
Sale price¥128,000
Brazilian emerald 3.3mm/0.119ct loose
Sale price¥22,800
Bicolor tourmaline 1.140ct loose
Sale price¥19,800
Bicolor tourmaline 0.707ct loose
Sale price¥12,800
Bicolor tourmaline 4.118ct loose
Sale price¥55,800
Prehnite 5.3mm/0.469ct loose
Sale price¥3,980
Prehnite 5.6mm/0.565ct loose
Sale price¥3,980
Orange zircon 0.453ct loose
Sale price¥3,980
Pink zircon 0.508ct loose
Sale price¥6,980
Zircon 0.414ct loose
Sale price¥3,980
Goethite in Amethyst 0.806ct loose stone
Sale price¥4,980
Brazilian emerald cat's eye 0.459ct loose
Sale price¥5,980
Hackmanite 0.698ct loose
Sale price¥15,800
Tinker Bell Quartz (Pink Fire Quartz) 8.5mm/1.715ct Loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.129ct loose (CuO:0.8%,MnO:0.1%)
Sale price¥48,800
Paraiba tourmaline from Brazil 0.101ct loose (CuO:0.9%,MnO:0.1%)
Sale price¥39,800
Oregon Sunstone from the United States 2.731ct loose stone
Sale price¥29,800
Taaffeite from Myanmar 0.580ct Ruth Japanese German edition
Sale price¥39,800
Rhodochrosite 1.884ct loose from Detroit City, USA
Sale price¥188,000
Parasite Peridot (Paracytic Peridot) 0.541ct Loose Japanese-German Edition
Sale price¥256,000
Rhodochrosite 0.527ct loose from Detroit City, USA
Sale price¥45,800
Rhodochrosite 0.516ct loose from Detroit City, USA
Sale price¥45,800
Blue tourmaline from Afghanistan 0.209ct loose
Sale price¥2,980
Blue tourmaline from Afghanistan 3.5mm/0.178ct loose
Sale price¥3,980
Yellow tourmaline 0.431ct loose stone
Sale price¥3,980
Color change sapphire 0.283ct loose
Sale price¥3,980
Rutilated Quartz (Rutilated Quartz) 6.402ct Loose
Sale price¥3,980
Color change sapphire 0.401ct loose
Sale price¥3,980
Hackmanite 0.520ct loose stone
Sale price¥18,800
Kunzite 8.4mm/2.908ct loose stone
Sale price¥19,800
Lepidocrocite in quartz 1.555ct loose
Sale price¥12,800
Lepidocrocite in Quartz 1.227ct Loose Stone
Sale price¥9,800
Lepidocrocite in quartz 0.692ct loose
Sale price¥8,800
Brazilian bicolor tourmaline 3.291ct loose
Sale price¥35,800
Brazilian bicolor tourmaline 3.569ct loose
Sale price¥35,800
Bicolor Euclase from Zimbabwe 0.084ct loose
Sale price¥98,000
Bicolor Benitoite 0.194ct loose (square cut)
Sale price¥128,000
Madagascar Apatite 0.763ct Loose Stone
Sale price¥6,980
Zoisite 1.219ct loose stone
Sale price¥15,800
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.