Brazilian Tourmaline 0.858ct Loose Stone
Sale price¥15,800
Brazilian pink tourmaline 0.844ct loose stone
Sale price¥22,800
Brazilian Pink Tourmaline 0.628ct Loose Stone
Sale price¥15,800
Mexican Fire Opal 6.7mm/0.953ct Loose
Sale price¥25,800
Brazilian bicolor euclase 0.572ct loose stone
Sale price¥24,800
[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose
Sale price¥29,800
Oregon Sunstone from the United States 6.0mm/0.844ct loose stone
Sale price¥25,800
Brazilian Green Tourmaline 0.935ct Loose Stone
Sale price¥45,800
Bicolor Benitoite 0.601ct Loose Japanese-German Edition
Sale price¥458,000
Tanzania Pink Zoisite 5.8mm/0.848ct Loose Stone
Sale price¥198,000
Madagascar Grandidierite 0.521ct loose stone
Sale price¥128,000
Rainbow Quartz (Iridescence Quartz) from India 0.940 ct Loose Gemstone
Sale price¥158,000
Spanish Andalusite 0.776ct loose stone
Sale price¥11,800
Colombian pyrite-mica emerald 0.739ct loose stone
Sale price¥36,800
Colombian pyrite-mica emerald 0.628ct loose stone
Sale price¥35,800
Mexican Fire Opal 0.576ct Loose (Faceted Cut)
Sale price¥9,800
Madagascar sphene 0.665ct loose stone
Sale price¥12,800
Zimbabwean Apatite (UV Type) 0.585ct Loose
Sale price¥12,800
Green tourmaline 0.512ct loose stone
Sale price¥9,800
Tanzania Color Change Garnet 0.789ct Loose Stone
Sale price¥9,800
Myanmar pink spinel 0.520ct loose stone
Sale price¥12,800
Afghan Kunzite 0.799ct Loose Gemstone
Sale price¥6,980
Tanzania Bicolor Zoisite 0.645ct Loose Stone
Sale price¥12,800
Brazilian bicolor tourmaline 0.502ct loose stone
Sale price¥12,800
Madagascar Yellow Sapphire 0.863ct Loose
Sale price¥18,800
Manganotantalite 0.736ct loose stone from Japan and Germany
Sale price¥158,000
American Herkimer Diamond 5.6mm/0.516ct Loose
Sale price¥9,800
Sri Lankan Moonstone 0.561ct Loose
Sale price¥6,980
Spanish Andalusite 5.7mm/0.706ct loose stone
Sale price¥9,800
Tanzanian Kornerupine Cat's Eye 0.622ct Loose Stone
Sale price¥4,980
Purple spinel 0.955ct loose stone
Sale price¥19,800
Vietnam Yellow Beryl (Heliodor) 0.904ct Loose Stone
Sale price¥8,800
Mica in Quartz 0.980ct Loose
Sale price¥6,980
Mica in Quartz 0.834ct Loose Stone
Sale price¥6,980
Mica in Quartz 0.544ct Loose Stone
Sale price¥6,980
Mexican egg-in-opal 0.627ct loose stone
Sale price¥8,800
Tanzanian Kornerupine Cat's Eye 0.866ct Loose Stone
Sale price¥5,980
Pink spinel 5.2mm/0.573ct loose stone
Sale price¥6,580
Diamond 0.534ct rough stone
Sale price¥9,800
Sealite from Afghanistan 0.632ct loose
Sale price¥3,980
Sealite from Afghanistan 0.938ct loose
Sale price¥3,980
Sealite from Afghanistan 0.905ct loose
Sale price¥3,980
Sealight from Afghanistan 0.604ct loose
Sale price¥3,980
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.