Mexican Hyalite Opal 1.687ct Loose
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.447ct loose stone (faceted cut)
Sale price¥18,800
Brazilian Dumortierite in Quartz 1.284ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.276ct loose stone
Sale price¥6,980
Tanzanite 1.540ct loose stone
Sale price¥49,800
Tanzanite 1.055ct loose stone
Sale price¥29,800
Tanzanite 1.458ct loose stone
Sale price¥39,800
Mongolian color change andesine 1.486ct loose stone
Sale price¥18,800
Tibetan Andesine 5.2mm/0.453ct Loose Stone
Sale price¥4,980
Mozambique pink tourmaline 1.006ct loose stone
Sale price¥8,800
Myanmar Musgravite 0.351ct Loose Stone Japan-Germany
Sale price¥188,000
Mexican Fire Opal (Faceted Cut) 0.934ct Loose
Sale price¥25,800
American Red Beryl 0.104ct Loose
Sale price¥15,800
Nigerian Blue Garnite 0.794ct Loose Stone, Japan-Germany Exchange
Sale price¥79,800
Colombian Euclase 1.314ct loose stone
Sale price¥39,800
Mozambique Rhodolite Garnet 1.146ct Loose Stone
Sale price¥12,800
Russian Diopside 1.506ct Loose Stone
Sale price¥29,800
Ruby 0.258ct loose
Sale price¥18,800
Synthetic Alexandrite 0.570ct loose stone
Sale price¥18,800
Kasharai Amethyst 0.430ct Loose
Sale price¥12,800
Australian black opal 0.544ct loose stone
Sale price¥18,800
Oregon Sunstone from the United States 1.930ct loose stone
Sale price¥18,800
Tanzania Peristerite 0.911ct Loose Stone (Royal Blue Moonstone)
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.350ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.474ct Loose
Sale price¥15,800
American Red Beryl 0.254ct Loose
Sale price¥59,800
American Red Beryl 0.260ct Loose
Sale price¥69,800
Sri Lankan Violet Spinel 0.592ct Loose
Sale price¥8,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.794ct Loose Stone
Sale price¥15,800
Sri Lankan bicolor sapphire 0.484ct loose stone
Sale price¥12,800
Zimbabwe bicolor euclase 0.205ct loose stone
Sale price¥98,000
Dominican Republic Conch Pearl 1.990ct Loose (with flame pattern)
Sale price¥29,800
Amazon Green Opal 7mm/0.88ct Loose
Sale price¥7,980
Paraiba tourmaline from Brazil 0.217ct loose (CuO:1.5%, MnO:0.5%)
Sale price¥39,800
American Axinite 1.630ct loose stone
Sale price¥7,980
Zimbabwe bicolor euclase rough stone 0.960ct
Sale price¥39,800
Madagascar Bicolor Sapphire 0.626ct Loose
Sale price¥29,800
Ethiopian Opal 1.521ct Loose
Sale price¥3,980
Ethiopian Opal 1.014ct Loose
Sale price¥3,980
Spanish Andalusite 0.74ct loose stone
Sale price¥6,980
Mexican Fire Opal 1.330ct Loose (Contralus Opal)
Sale price¥19,800
Mexican Fire Opal 1.610ct Loose (Contralus Opal)
Sale price¥19,800
Brazilian Pink Euclase 1.259ct Loose Stone Japan-Germany
Sale price¥398,000
Sri Lankan bicolor sapphire 0.304ct loose stone
Sale price¥14,800
South African diamond rough stone 0.330ct
Sale price¥5,980
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.