Blue tourmaline from Afghanistan 3.5mm/0.178ct loose
Sale price¥6,980
Yellow tourmaline 0.431ct loose stone
Sale price¥5,980
Color change sapphire 0.283ct loose
Sale price¥4,980
Rutilated Quartz (Rutilated Quartz) 6.402ct Loose
Sale price¥6,980
Color change sapphire 0.401ct loose
Sale price¥6,980
Hackmanite 0.520ct loose stone
Sale price¥24,800
Synthetic moissanite 6.704ct loose
Sale price¥29,800
Kunzite 8.4mm/2.908ct loose stone
Sale price¥19,800
Lepidocrocite in quartz 1.555ct loose
Sale price¥15,800
Lepidocrocite in Quartz 1.227ct Loose Stone
Sale price¥12,800
Lepidocrocite in quartz 0.692ct loose
Sale price¥8,800
Brazilian bicolor tourmaline 3.291ct loose
Sale price¥39,800
Brazilian bicolor tourmaline 3.569ct loose
Sale price¥49,800
Brazilian pink euclase 0.091ct loose
Sale price¥39,800
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¥8,800
Zoisite 1.219ct loose stone
Sale price¥18,800
Tinker Bell Quartz (Pink Fire Quartz) 1.664ct Loose (Faceted Cut)
Sale price¥19,800
Purple spinel 0.754ct loose
Sale price¥9,800
Blue spinel 1.949ct loose
Sale price¥29,800
Lavender spinel 0.305ct loose
Sale price¥7,980
Bicolor Benitoite 0.282ct loose
Sale price¥220,000
Bicolor tourmaline 0.669ct loose (rose cut)
Sale price¥9,800
Bicolor tourmaline 0.505ct loose (rose cut)
Sale price¥8,800
Bicolor tourmaline 0.549ct loose (rose cut)
Sale price¥9,800
Brazilian blue tourmaline 0.376ct loose
Sale price¥8,800
Dendritic quartz 7.997ct loose
Sale price¥9,800
Cambodian blue zircon (Ratanakiri blue) 3.992ct loose
Sale price¥59,800
Brazilian Alexandrite 0.068ct Ruth (Hemachita Mine)
Sale price¥17,800
Brazilian Alexandrite 0.074ct Ruth (Hemachita Mine)
Sale price¥15,800
Brazilian Alexandrite 0.086ct Ruth (Hemachita Mine)
Sale price¥18,800
Colombian pyrite in emerald 7.836ct loose
Sale price¥398,000
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
Pink zoisite from Tanzania 0.536ct loose Japanese German edition
Sale price¥39,800
British Rosary Fluorite 4.738ct loose
Sale price¥9,800
British Rosary Fluorite 1.841ct loose
Sale price¥5,980
Paraiba tourmaline from Brazil 0.144ct loose (CuO:0.9%,MnO:2.8%)
Sale price¥55,800
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
Agate 34.143ct Ruth (Druzy Agate)
Sale price¥3,980
Agate 56.919ct 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.
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.