Brazilian Medusa Quartz (Paraiba Quartz) 1.405ct Loose Stone
Sale price¥8,800
Sky blue topaz 1.051ct loose stone
Sale price¥9,800
Synthetic Spinel 1.668ct Loose Stone (Synthetic Blue Spinel)
Sale price¥15,800
Goshenite 1.040ct loose
Sale price¥8,800
Aventurine aquamarine 1.143ct loose
Sale price¥9,800
Pink tourmaline 6.1mm/1.031ct loose stone
Sale price¥9,800
Bicolor tourmaline 1.198ct loose
Sale price¥14,800
Moss Agate 1.056ct loose
Sale price¥9,800
Moss Agate 1.115ct loose
Sale price¥8,800
Lepidocrocite in quartz 1.087ct loose
Sale price¥6,980
Lepidocrocite in quartz 1.096ct loose
Sale price¥9,800
Lepidocrocite in quartz 1.324ct loose
Sale price¥6,980
Bicolor tourmaline 1.329ct loose
Sale price¥9,800
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥29,800
Mexican bicolor Danburite 1.932ct loose stone by Nikkei
Sale price¥34,800
[Sakura Incut] Danburite 8.3mm/1.585ct loose with patch
Sale price¥29,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.317ct loose
Sale price¥24,800
Brazilian Paraiba tourmaline in quartz 1.602ct loose
Sale price¥49,800
Australian rainbow lattice sunstone 1.082ct loose
Sale price¥6,980
Sunstone (Illusion Sunstone) 1.908ct loose
Sale price¥8,800
Spanish bicolor sphalerite 1.652ct loose
Sale price¥25,800
Tanzanian Kornerupine Cat's Eye 1.539ct Loose Stone
Sale price¥9,800
Medusa Quartz (Paraiba Quartz) 1.855ct loose
Sale price¥25,800
Myanmar color change zircon 1.00ct loose (reverse color change)
Sale price¥69,800
Australian Rainbow Lattice Sunstone 1.013ct Loose
Sale price¥5,980
Australian Rainbow Lattice Sunstone 1.635ct Loose
Sale price¥8,800
Lazurite in quartz from Madagascar 7.5mm/1.600ct loose
Sale price¥18,800
Oregon Sunstone 1.507ct loose
Sale price¥12,800
Myanmar Purple Spinel 1.364ct Loose Stone
Sale price¥29,800
Green tourmaline 1.687ct loose
Sale price¥15,800
Pink tourmaline 1.575ct loose
Sale price¥14,800
Green tourmaline 1.258ct loose
Sale price¥29,800
Cambodian Blue Zircon 1.895ct Loose
Sale price¥19,800
Cambodian Blue Zircon 1.205ct Loose
Sale price¥18,800
Aventurine aquamarine 1.022ct loose
Sale price¥6,980
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥14,800
Gray diamond 1.247ct loose
Sale price¥228,000
Strawberry quartz from Kazakhstan 1.613ct loose
Sale price¥12,800
Strawberry quartz from Kazakhstan 1.031ct loose
Sale price¥8,800
Strawberry quartz from Kazakhstan 1.536ct loose
Sale price¥12,800
Bloodshot Iolite Sunstone 1.250ct Loose
Sale price¥12,800
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.