Demantoid garnet 15.468ct rough stone from Madagascar
Sale price¥12,800
Demantoid garnet 20.693ct rough stone from Madagascar
Sale price¥12,800
Demantoid garnet 38.035ct rough stone from Madagascar
Sale price¥12,800
Bicolor Zircon 0.468ct Ruth Japanese-German Dictionary
Sale price¥25,800
Colombian trapiche emerald (reverse trapiche) 3.6mm/0.168ct rough stone
Sale price¥19,800
Colombian trapiche emerald (reverse trapiche) 0.135ct rough stone
Sale price¥14,800
Colombian trapiche emerald (reverse trapiche) 3.4mm/0.132ct rough stone
Sale price¥14,800
Colombian trapiche emerald (reverse trapiche) 0.131ct rough stone
Sale price¥14,800
Colombian trapiche emerald (reverse trapiche) 3.2mm/ 0.091ct rough stone
Sale price¥11,000
Cobalt Garnite 0.155ct loose (sugar loaf cut)
Sale price¥12,800
American red beryl 0.143ct loose
Sale price¥17,800
American red beryl 0.115ct loose
Sale price¥13,800
American red beryl 0.208ct loose
Sale price¥25,800
American red beryl 0.141ct loose
Sale price¥16,800
American red beryl 0.136ct loose
Sale price¥16,800
Diamond 0.096ct loose (D, SI1, octagonal cut)
Sale price¥19,800
Diamond 0.126ct loose (F, VS2, octagonal cut)
Sale price¥25,800
Synthetic moissanite (gray blue) 1.701ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 3.5mm/0.278ct loose
Sale price¥18,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 1.825ct loose
Sale price¥24,800
Rutile (single crystal) from Sri Lanka 10.697ct rough
Sale price¥19,800
Paraiba tourmaline from Mozambique 0.270ct loose
Sale price¥21,800
Mexican Opal 0.796ct Loose (Contralus Opal)
Sale price¥24,800
Paraiba tourmaline from Brazil 0.066ct loose
Sale price¥19,800
American benitoite 0.097ct loose
Sale price¥29,800
American benitoite 0.101ct loose
Sale price¥28,800
American benitoite 0.102ct loose
Sale price¥28,800
Jeremejevite from Namibia 0.145ct loose (contains iron oxide)
Sale price¥19,800
Oregon Sunstone 2.528ct loose
Sale price¥29,800
Pink sapphire 0.881ct loose
Sale price¥18,800
Russian demantoid garnet cat's eye (horsetail recognized) 0.171ct loose
Sale price¥22,800
Russian demantoid garnet cat's eye (horsetail recognized) 0.222ct loose
Sale price¥29,800
Pink spinel 0.848ct loose stone 6.6mm
Sale price¥12,800
Mint green sapphire 0.348ct loose
Sale price¥12,800
Bicolor sapphire from Madagascar 0.252ct loose
Sale price¥14,800
Yellow sapphire from Sri Lanka 0.222ct loose
Sale price¥12,800
Goshenite 1.620ct loose
Sale price¥22,800
Goshenite 1.989ct loose
Sale price¥25,800
Dendritic Agate 2.964ct loose
Sale price¥15,800
Diaspore 1.209ct loose from Türkiye
Sale price¥21,800
Diaspore from Türkiye 0.858ct loose
Sale price¥21,800
Diaspore from Türkiye 0.636ct loose
Sale price¥15,800
Brazilian kyanite in quartz 4.770ct loose
Sale price¥16,800
Brazilian dumortierite in quartz 3.901ct loose
Sale price¥19,800
Brazilian Medusa Quartz (Paraiba Quartz) 6.954ct loose
Sale price¥17,800
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.