Colombian emerald cat's eye 0.084ct loose
Sale price¥6,980
Brazilian Morganite 1.950ct loose stone
Sale price¥14,800
Paraiba tourmaline from Brazil 0.200ct loose (CuO: 0.7%, MnO: 4.0%)
Sale price¥29,800
Synthetic Moissanite 10mm/3.340ct Loose Stone
Sale price¥18,800
Synthetic Moissanite 13.5mm/8.950ct Loose
Sale price¥39,800
Nigerian Cobalt Garnite 0.175ct Loose Stone, Japan-Germany Exchange
Sale price¥35,800
Diamond 0.245ct loose stone (E, VS-1, octagon brilliant cut)
Sale price¥39,800
Mexican fire agate 8.69ct loose
Sale price¥14,800
Mexican fire agate 5.86ct loose
Sale price¥14,800
Andalusite from Madagascar 4.6mm/0.369ct loose stone
Sale price¥5,980
Dominican Republic Conch Pearl (with flame pattern) 0.960ct loose
Sale price¥18,800
Dominican Republic Conch Pearl (with flame pattern) 0.950ct loose
Sale price¥15,800
Brazilian Madeira Citrine 6.8mm/1.110ct Loose Stone
Sale price¥4,980
Sweet Home Rhodochrosite 2.7mm/0.108ct Loose Stone
Sale price¥12,800
Mexican Fire Opal 0.448ct Loose
Sale price¥3,980
[Koshu Precious Stone Cut] Hematite in Quartz 5.155ct Loose Patch
Sale price¥45,800
German Awinite 0.093ct loose stone
Sale price¥29,800
2.801ct loose stone of Rogerian fluorite from the UK
Sale price¥8,800
2.744ct loose Rogerley fluorite from the UK
Sale price¥8,800
Colombian fluorite 6.327ct loose stone
Sale price¥25,800
Madagascar Aquamarine 1.678ct Loose Stone
Sale price¥15,800
Tanzanite from Tanzania 0.432ct loose stone
Sale price¥12,800
Tibetan Andesine 0.671ct loose stone
Sale price¥12,800
Blue sapphire 0.466ct loose stone
Sale price¥12,800
Blue sapphire 0.282ct loose stone (teal color)
Sale price¥15,800
Madagascar Blue Sapphire 0.890ct Loose
Sale price¥39,800
Colombian fluorite 5.903ct loose stone
Sale price¥18,800
0.870ct loose purple spinel from Madagascar
Sale price¥14,800
Madagascar Purple Spinel 5.2mm/0.651ct Loose Stone
Sale price¥8,800
Vietnam Aquamarine 0.586ct Loose
Sale price¥12,800
Brazilian bicolor topaz 2.618ct loose stone (untreated)
Sale price¥18,800
Afghanistan diaspore 0.215ct loose stone
Sale price¥12,800
Oligoclase Sunstone 15mm/10.593ct Loose
Sale price¥15,800
Synthetic Alexandrite 0.560ct loose stone
Sale price¥14,800
Madagascar Iolite 2.272ct loose stone
Sale price¥19,800
Brazilian mint color tourmaline 0.849ct loose stone
Sale price¥29,800
American Benitoite 0.167ct loose stone
Sale price¥59,800
American Benitoite 0.150ct loose stone (emerald cut)
Sale price¥69,800
American Benitoite 3.1mm/0.129ct loose stone
Sale price¥59,800
American Benitoite 0.058ct loose stone (princess cut)
Sale price¥15,800
American Benitoite 0.051ct loose stone (princess cut)
Sale price¥15,800
Spanish Sphalerite 5.6mm/0.956ct loose stone
Sale price¥14,800
Spanish Sphalerite 5.6mm/0.841ct loose stone
Sale price¥12,800
Spanish Sphalerite 12.5mm/9.860ct Loose Stone
Sale price¥98,000
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.