Aquamarine 0.568ct loose stone
Sale price¥5,980
Moss agate 1.285ct loose stone
Sale price¥5,980
Aquamarine 0.398ct loose stone
Sale price¥7,980
Brazilian Medusa Quartz (Paraiba Quartz) 0.400ct Loose
Sale price¥6,980
Australian Black Opal 0.940ct Loose
Sale price¥18,800
Australian black opal, 0.336ct loose stone
Sale price¥19,800
Pink spinel 0.365ct loose stone
Sale price¥9,800
Sky blue topaz 0.428ct loose stone
Sale price¥5,980
Sky blue topaz 0.563ct loose stone
Sale price¥5,980
Brazilian imperial topaz 0.830ct loose
Sale price¥18,800
Bicolor Zoisite 0.203ct loose stone
Sale price¥8,800
Tanzanite 0.349ct loose
Sale price¥8,800
Bicolor Zoisite 0.402ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.302ct loose stone
Sale price¥8,800
Lepidocrocite in Quartz 0.768ct Loose
Sale price¥7,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.529ct Loose Stone
Sale price¥6,980
Lepidocrocite in Quartz 0.241ct Loose Stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.241ct Loose Stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.405ct Loose Stone
Sale price¥8,800
Australian Black Opal 0.548ct Loose
Sale price¥18,800
American Oregon Sunstone 7.0mm/1.494ct Loose
Sale price¥35,800
Australian Black Opal 0.768ct Loose
Sale price¥25,800
Australian Black Opal 1.539ct Loose
Sale price¥15,800
Brazilian alexandrite 0.070ct loose
Sale price¥39,800
0.834 ct loose Sky Blue Topaz from Brazil
Sale price¥8,800
Tanzanite 0.328ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.229ct loose stone
Sale price¥6,980
Bicolor Zoisite 0.273ct loose stone
Sale price¥7,980
Bicolor tourmaline 0.423ct loose
Sale price¥12,800
Bicolor tourmaline 0.552ct loose
Sale price¥12,800
Bicolor tourmaline 0.548ct loose
Sale price¥6,980
Green tourmaline 0.637ct loose
Sale price¥8,800
Lepidocrocite in Quartz 0.382ct Loose
Sale price¥6,980
Australian Black Opal 0.605ct Loose Stone
Sale price¥22,800
Australian Black Opal 0.744ct Loose Gemstone
Sale price¥18,800
Australian black opal 1.311 ct loose stone
Sale price¥18,800
Brazilian dumortierite in quartz, 0.813 ct, loose
Sale price¥9,800
Brazilian dumortierite in quartz, 0.796 ct, loose
Sale price¥7,980
Diamond 0.777ct loose (butterfly cut)
Sale price¥69,800
Australian black opal loose stone, 0.618ct
Sale price¥15,800
Brazilian Dumortierite in Quartz 0.543ct Loose Stone
Sale price¥5,980
Iridescent Tourmaline 3.107ct Loose Stone
Sale price¥37,800
0.113 ct Zimbabwe Euclase loose gemstone
Sale price¥45,800
Zimbabwean apatite loose stone, 3.156 ct
Sale price¥25,800
Zimbabwean apatite, 1.713 ct loose
Sale price¥19,800
Bicolor Euclase from Zimbabwe 0.539ct Rough
Sale price¥25,800
Uncut Zimbabwe Euclase 0.443ct
Sale price¥29,800
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.