Mexican Cantera Opal 5.204ct Loose
Sale price¥12,800
Emerald 0.308ct loose stone
Sale price¥14,800
Tanzania Green Apatite 0.329ct Loose Stone
Sale price¥8,800
American Benitoite 0.084ct loose stone (colorless Benitoite)
Sale price¥12,800
Tanzania Green Apatite 0.190ct Loose Stone
Sale price¥6,980
Tanzania Green Apatite 0.246ct Loose Stone
Sale price¥8,800
Brazilian Euclase 0.213ct loose stone (bicolor Euclase)
Sale price¥15,800
Brazilian Euclase 0.263ct Loose Stone (Colorless Euclase)
Sale price¥9,800
Brazilian Flower Rutile in Quartz 5.122ct Loose Stone
Sale price¥9,800
Ethiopian Opal 167.191ct Rough Stone
Sale price¥39,800
[Koshu Precious Stone Cut] Scololite 6.039ct Loose Stone Patch
Sale price¥69,800
Synthetic Moissanite 11.7mm/5.570ct Loose Stone (Portuguese Cut)
Sale price¥29,800
Italian Leucite 0.338ct loose stone (play of color)
Sale price¥15,800
Tourmaline 1.099ct loose
Sale price¥12,800
Madagascar sapphire 0.162ct loose stone
Sale price¥5,980
Tanzania Purple Zoisite Rough Stone 2.590ct
Sale price¥9,800
Tanzania Bicolor Zoisite 1.608ct Rough Stone
Sale price¥12,800
Tanzania Bicolor Pink Zoisite 4.037ct Rough Stone
Sale price¥12,800
3.324ct Tanzanian Purple Zoisite Rough Stone
Sale price¥6,980
Almandine garnet 2.421ct loose
Sale price¥18,800
Congo Carolite 6.2mm/1.481ct Loose Stone Japan-Germany Scale
Sale price¥29,800
Mexican Cantera Opal 3.297ct Loose
Sale price¥29,800
Italian Leucite 0.374ct loose stone (play of color)
Sale price¥14,800
Madagascar sapphire 0.377ct loose stone
Sale price¥12,800
Brazilian copper rutilated quartz 2.101ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.381ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.610ct loose stone
Sale price¥8,800
Brazilian Euclase 0.224ct Loose Stone (Bicolor Euclase)
Sale price¥18,800
Flower rutilated quartz 0.955ct loose stone
Sale price¥9,800
Brazilian rutilated quartz (rutilated quartz) 8.247ct loose stone
Sale price¥14,800
Zimbabwean Blue Apatite (UV type) 1.056ct loose stone
Sale price¥15,800
Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline)
Sale price¥298,000
Colombian pyrite emerald 13.691ct loose stone
Sale price¥398,000
Amazon Green Opal 0.814ct Loose (Faceted Cut)
Sale price¥8,800
Amazonian green opal 0.517ct loose stone (faceted cut)
Sale price¥8,800
Amazon Green Opal 0.285ct Loose (Faceted Cut)
Sale price¥6,980
Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥9,800
Brazilian Flower Rutile in Quartz 3.312ct Loose Stone
Sale price¥15,800
Brazilian Flower Rutile in Quartz 3.066ct Loose Stone
Sale price¥18,800
Brazilian Tourmaline (untreated) 5.120ct loose stone
Sale price¥39,800
Brazilian Yellow Beryl 11.411ct Loose Stone, Japan-Germany Exchange
Sale price¥25,800
Russian rough diamond (sawable) 0.101ct loose
Sale price¥25,800
Detroit City Rhodochrosite 4mm/0.439ct Loose Stone
Sale price¥8,800
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.