582.5ct rough cabansite from India
Sale price¥19,800
663.50ct Indian Cavansite rough stone
Sale price¥19,800
1055.5ct Indian Cavansite Rough Stone
Sale price¥19,800
Santa Maria Aquamarine from Brazil 0.189ct loose
Sale price¥5,980
Brazilian Santa Maria Aquamarine 0.181ct loose
Sale price¥6,980
Yellow sapphire 0.464ct loose
Sale price¥12,800
Yellow sapphire 0.315ct loose
Sale price¥6,980
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.445ct loose
Sale price¥8,800
Australian shell opal 53.277ct rough stone
Sale price¥59,800
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥5,980
Russian demantoid garnet (horsetail recognized) 0.141ct loose
Sale price¥39,800
Russian demantoid garnet (horsetail recognized) 0.119ct loose
Sale price¥29,800
Dendritic quartz 3.875ct loose
Sale price¥8,800
Dendritic quartz 4.272ct loose
Sale price¥9,800
Australian rainbow lattice sunstone 1.082ct loose
Sale price¥6,980
Australian rainbow lattice sunstone 0.587ct loose
Sale price¥6,980
Brazilian lepidocrocite in quartz 0.992ct loose
Sale price¥4,980
Aquamarine in quartz 18.954ct rough stone
Sale price¥15,800
Rutilated Quartz (Rutilated Quartz) 9.721ct Loose (Sun Rutilated Quartz)
Sale price¥29,800
Rutilated Quartz (Rutile Quartz) 7.440ct Loose (Sun Rutilated Quartz)
Sale price¥25,800
Brazilian Paraiba tourmaline in quartz 1.602ct loose
Sale price¥49,800
Brazilian Medusa Quartz (Paraiba Quartz) 1.317ct loose
Sale price¥24,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.524ct loose
Sale price¥35,800
508ct rough cabansite from India
Sale price¥9,800
Indian Cavansite 246.106ct rough stone
Sale price¥9,800
Indian Cavansite 240.461ct rough stone
Sale price¥9,800
Oregon Sunstone 8.256ct rough stone
Sale price¥15,800
[Koshu precious stone cutter pluethree] Colombian emerald 2.018ct loose
Sale price¥98,000
[Sakura Incut] Danburite 8.3mm/1.585ct loose with patch
Sale price¥29,800
[Clover in cut] Emerald 9mm/2.498ct {Collaboration} Loose with patch
Sale price¥98,000
[Camellia Cut] Ametrine 14mm/8.308ct Loose Stone
Sale price¥89,800
Australian rainbow lattice sunstone 0.353ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.354ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.449ct loose
Sale price¥5,980
Australian rainbow lattice sunstone 0.498ct loose
Sale price¥3,980
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥5,980
Mexican bicolor Danburite 1.932ct loose stone by Nikkei
Sale price¥34,800
Bicolor Paraiba tourmaline 2.477ct loose DGL version
Sale price¥228,000
South African rhodochrosite 2.477ct loose Japanese-German edition
Sale price¥398,000
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
Scapolite 0.587ct loose stone from Japan and Germany
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.