Green tourmaline 0.637ct loose
Sale price¥8,800
Bloodshot Iolite Sunstone 2.121ct Loose
Sale price¥12,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.529ct Loose Stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.405ct Loose Stone
Sale price¥8,800
Australian black opal 0.439ct loose
Sale price¥11,800
Loose Australian Black Opal 0.397ct
Sale price¥12,800
Australian Black Opal 0.329ct Loose
Sale price¥14,800
Australian Black Opal 0.377 ct Loose
Sale price¥15,800
Australian Black Opal 0.448ct Loose Stone
Sale price¥15,800
Australian Black Opal 0.529ct Loose
Sale price¥15,800
Australian Black Opal 0.552ct Loose
Sale price¥8,800
Australian black opal 0.667ct loose stone
Sale price¥12,800
Australian Black Opal 1.705ct Loose
Sale price¥12,800
Australian Black Opal 0.362ct Loose
Sale price¥18,800
Australian Black Opal 0.385ct Loose Stone
Sale price¥18,800
Australian black opal, 0.666ct loose
Sale price¥12,800
Australian black opal, 0.336ct loose stone
Sale price¥19,800
Australian Black Opal 0.415ct Loose
Sale price¥18,800
Australian Black Opal 0.548ct Loose
Sale price¥18,800
Australian Black Opal 0.744ct Loose Gemstone
Sale price¥18,800
Australian black opal loose stone, 0.618ct
Sale price¥15,800
Australian black opal 1.311 ct loose stone
Sale price¥18,800
Australian Black Opal 0.387ct Loose
Sale price¥18,800
Australian Black Opal 0.605ct Loose Stone
Sale price¥22,800
Australian Black Opal 0.754ct Loose
Sale price¥22,800
Australian Black Opal 0.940ct Loose
Sale price¥18,800
Australian Black Opal 1.539ct Loose
Sale price¥15,800
Australian Black Opal 0.754ct Loose
Sale price¥22,800
Australian Black Opal 0.768ct Loose
Sale price¥25,800
Australian black opal 0.758ct loose stone
Sale price¥35,800
Australian black opal 1.168ct loose stone
Sale price¥39,800
Zambian Canary Yellow Tourmaline 0.158ct Loose Stone
Sale price¥9,800
Dioptase from Namibia 0.150ct loose Japanese-German book
Sale price¥49,800
Blue Tourmaline 1.460ct Loose Stone Japan-Germany Exchange
Sale price¥39,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥12,800
Mexican bicolor Danburite 1.932ct loose stone by Nikkei
Sale price¥29,800
Australian rainbow lattice sunstone 0.449ct loose
Sale price¥4,980
Australian rainbow lattice sunstone 0.354ct loose
Sale price¥4,980
[Rouge Cut] Pink Tourmaline from Brazil 0.440ct Loose
Sale price¥9,800
[Rouge Cut] Mexican Fire Opal 1.458ct Loose Stone
Sale price¥18,800
Mozambican Almandine Garnet 1.363ct Loose Stone
Sale price¥12,800
Indian Black Moonstone 0.609ct Loose
Sale price¥7,980
Indian Black Moonstone 1.871ct Loose Gemstone
Sale price¥12,800
Brazilian Dumortierite in Quartz 0.699ct Loose Stone
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.910ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.642ct 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.