Spanish Sphalerite 1.609ct loose stone
Sale price¥19,800
Mexican Fire Opal (Faceted Cut) 0.352ct Loose
Sale price¥9,800
Brazilian Blue Tourmaline 0.650ct Loose
Sale price¥9,800
Myanmar spinel 0.402ct loose stone
Sale price¥12,800
Brazilian Alexandrite 0.519ct loose stone (sugarloaf cut)
Sale price¥358,000
Tanzania Bicolor Zoisite 0.320ct Loose Stone
Sale price¥7,980
Tanzanite from Tanzania 0.321ct loose stone
Sale price¥6,980
Tanzanite from Tanzania 0.250ct loose stone
Sale price¥8,800
Mexican Yellow Opal 0.428ct Loose
Sale price¥8,800
Myanmar pink spinel 0.465ct loose stone
Sale price¥19,800
Myanmar Purple Spinel 0.434ct Loose Stone
Sale price¥12,800
Cambodian colorless zircon 0.508ct loose stone
Sale price¥8,800
Cambodian colorless zircon 0.512ct loose stone
Sale price¥8,800
Brazilian Petalite 0.713ct loose stone
Sale price¥5,980
Bicolor tourmaline 0.840ct loose
Sale price¥22,800
Oregon Sunstone from the United States 0.372ct loose stone
Sale price¥12,800
Oregon Sunstone from the United States 5.0mm/0.460ct loose stone
Sale price¥19,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct Loose Stone
Sale price¥22,800
Brazilian bicolor tourmaline 0.845ct loose stone
Sale price¥15,800
Tourmaline 0.541ct loose stone
Sale price¥8,800
Brazilian bicolor tourmaline 0.326ct loose stone
Sale price¥8,800
Brazilian Pink Tourmaline 0.628ct Loose Stone
Sale price¥15,800
Mexican Fire Opal 4.9mm/0.333ct Loose
Sale price¥8,800
Brazilian Indigolite Tourmaline 1.616ct Loose Stone JTL
Sale price¥69,800
Tanzanite from Tanzania 0.767ct loose stone
Sale price¥29,800
Bicolor Benitoite 0.601ct Loose Japanese-German Edition
Sale price¥458,000
Nigerian Green Beryl 1.349ct Loose Stone
Sale price¥98,000
Madagascar Grandidierite 0.521ct loose stone
Sale price¥128,000
Indian Rainbow Quartz (Iridescent Quartz) 0.940ct Loose Stone
Sale price¥158,000
Spanish Andalusite 0.776ct loose stone
Sale price¥11,800
Mexican Fire Opal 0.576ct Loose (Faceted Cut)
Sale price¥9,800
1.953ct Bicolor Sphalerite from Spain
Sale price¥25,800
Zimbabwean Apatite (UV type) 0.585ct loose stone
Sale price¥12,800
Tanzania Color Change Garnet 0.789ct Loose Stone
Sale price¥9,800
Myanmar pink spinel 0.520ct loose stone
Sale price¥12,800
Tanzanian Kornerupine 0.453ct loose stone
Sale price¥24,800
Brazilian bicolor tourmaline 0.502ct loose stone
Sale price¥12,800
Nigerian Aventurine Aquamarine 0.471ct Loose Stone
Sale price¥8,800
Violet Sapphire 4.3mm/0.328ct Loose
Sale price¥15,800
Pink sapphire 4.5mm/0.390ct loose stone
Sale price¥15,800
Brazilian Paraiba Tourmaline 0.759ct rough stone
Sale price¥45,800
Manganotantalite 0.736ct loose stone from Japan and Germany
Sale price¥158,000
Colombian Trapiche Emerald 0.372ct Loose
Sale price¥19,800
Tanzanite from Tanzania 0.262ct loose stone
Sale price¥8,800
Tanzania Purple Zoisite Rough Stone 1.160ct
Sale price¥8,800
Zimbabwean Blue Apatite (UV type) 1.056ct loose stone
Sale price¥15,800
Oregon Sunstone from the United States 0.292ct 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.