Oval Cut
Brazilian Flower Quartz 7.144ct Loose Stone
Sale price¥17,800
Brazilian Flower Quartz 6.501ct Loose Stone
Sale price¥16,800
Brazilian Flower Quartz 6.582ct Loose Stone
Sale price¥16,800
Tanzanian Chrome Tourmaline 0.522ct Loose Stone
Sale price¥5,980
Chrysoberyl cat's eye 1.088ct loose stone
Sale price¥8,800
Cristobalite in Quartz 2.417ct Loose Stone
Sale price¥12,800
Cristobalite in Quartz 1.660ct Loose
Sale price¥9,800
Sri Lankan Star Sapphire 2.093ct Loose
Sale price¥9,800
Australian black opal 0.407ct loose stone
Sale price¥8,800
Pigeon Blood Ruby 0.295ct Loose AIGS
Sale price¥49,800
Brazilian alexandrite 0.058ct loose
Sale price¥12,800
Brazilian alexandrite 0.051ct loose
Sale price¥11,000
Madagascar Pezzottaite 0.229ct loose stone
Sale price¥19,800
Madagascar Pezzottaite 0.554ct loose stone
Sale price¥19,800
Sri Lankan Star Sapphire 1.339ct Loose
Sale price¥15,800
Sri Lankan Star Sapphire 1.682ct Loose
Sale price¥15,800
Sri Lankan Star Sapphire 1.225ct Loose
Sale price¥15,800
Namibian Hemimorphite 0.697ct Loose Stone
Sale price¥8,800
Namibian Hemimorphite 0.615ct Loose Stone
Sale price¥7,980
Ethiopian Opal 2.131ct Loose
Sale price¥12,800
Ethiopian Opal 1.694ct Loose
Sale price¥8,800
Mexican Opal 0.499ct Loose
Sale price¥5,980
Mexican Opal 0.854ct Loose
Sale price¥6,980
Zimbabwean Blue Apatite (UV Type) 0.539ct Loose
Sale price¥9,800
Mexican Fire Opal 2.235ct Loose
Sale price¥26,800
Mexican Fire Opal 1.743ct Loose
Sale price¥24,800
Mexican Fire Opal 3.425ct Loose
Sale price¥29,800
Australian Opal 0.760ct Loose
Sale price¥12,800
Australian Opal 0.315ct Loose
Sale price¥5,980
Australian Opal 0.440ct Loose
Sale price¥8,800
Australian Opal 1.203ct Loose
Sale price¥12,800
Mexican Cantera Opal 15.195ct Loose
Sale price¥18,800
Mexican Fire Opal 1.104ct Loose
Sale price¥9,800
Australian black opal 2.277ct loose stone (play of color on both sides)
Sale price¥34,800
Benitoite 0.080ct loose
Sale price¥12,800
Benitoite 0.084ct loose stone
Sale price¥12,800
American Red Beryl 0.109ct Loose
Sale price¥29,800
Benitoite 0.300ct loose stone (cabochon cut)
Sale price¥12,800
Benitoite 0.536ct loose stone (cabochon cut)
Sale price¥12,800
[KEN] Pink spinel from Myanmar 0.604ct loose
Sale price¥9,800
Benitoite 0.311ct loose stone (cabochon cut)
Sale price¥12,800
Lepidocrocite in quartz 1.096ct loose
Sale price¥9,800
Lepidocrocite in quartz 1.324ct loose
Sale price¥6,980
Lepidocrocite in quartz 0.532ct loose
Sale price¥6,980
Dioptase from Namibia 0.150ct loose Japanese-German book
Sale price¥59,800
South African rhodochrosite 2.477ct loose Japanese-German edition
Sale price¥398,000
[Koshu precious stone cutter pluethree] Colombian emerald 2.018ct loose
Sale price¥98,000
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.