Brazilian Medusa Quartz (Paraiba Quartz) 1.241ct Loose Stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.405ct Loose Stone
Sale price¥8,800
Brazilian dendritic quartz 3.608ct loose stone
Sale price¥8,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.484ct loose stone
Sale price¥29,800
Dioptase from Namibia 0.150ct loose Japanese-German book
Sale price¥49,800
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥39,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥12,800
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
South African rhodochrosite 2.477ct loose Japanese-German edition
Sale price¥398,000
Bicolor Paraiba tourmaline 2.477ct loose DGL version
Sale price¥298,000
Mexican bicolor Danburite 1.932ct loose stone by Nikkei
Sale price¥29,800
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥4,980
Australian rainbow lattice sunstone 0.498ct loose
Sale price¥2,980
Australian rainbow lattice sunstone 0.449ct loose
Sale price¥4,980
Australian rainbow lattice sunstone 0.354ct loose
Sale price¥4,980
Oregon Sunstone 8.256ct rough stone
Sale price¥9,800
Indian Cavansite 240.461ct rough stone
Sale price¥8,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.524ct loose
Sale price¥29,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.317ct loose
Sale price¥18,800
Brazilian Paraiba tourmaline in quartz 1.602ct loose
Sale price¥39,800
Rutilated Quartz (Rutile Quartz) 7.440ct Loose (Sun Rutilated Quartz)
Sale price¥18,800
Rutilated Quartz (Rutilated Quartz) 9.721ct Loose (Sun Rutilated Quartz)
Sale price¥25,800
Aquamarine in quartz 18.954ct rough stone
Sale price¥18,800
Australian rainbow lattice sunstone 0.587ct loose
Sale price¥4,980
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥3,980
Australian shell opal 53.277ct rough stone
Sale price¥59,800
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.464ct loose
Sale price¥9,800
American red beryl 0.184ct loose
Sale price¥39,800
Cambodian blue zircon 0.258ct loose
Sale price¥6,980
Cambodian blue zircon 0.197ct loose
Sale price¥5,980
Cambodian blue zircon 0.217ct loose
Sale price¥6,980
Cambodian blue zircon 0.267ct loose
Sale price¥6,980
Auinite 2.3mm/0.060ct loose
Sale price¥6,980
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
Auinite 2.4mm/0.064ct loose
Sale price¥8,800
Myanmar color change zircon 1.00ct loose (reverse color change)
Sale price¥69,800
Montana Sapphire 0.515ct loose (bicolor sapphire)
Sale price¥15,800
Montana Sapphire 0.361ct loose (yellow sapphire)
Sale price¥12,800
Cornelpine from Tanzania 0.331ct loose
Sale price¥22,800
Tanzanian Kornerupine 3.4mm/0.185ct Loose Stone
Sale price¥9,800
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.