Goshenite 6mm/0.896ct loose stone
Sale price¥12,800
Green Tourmaline 6mm/0.991ct Loose
Sale price¥15,800
Pink tourmaline 6mm/0.990ct loose stone
Sale price¥12,800
Paraiba tourmaline from Mozambique 1.057ct loose
Sale price¥24,800
Pyrite in quartz 34.864ct loose
Sale price¥29,800
Triphyllite in quartz 13.378ct loose
Sale price¥14,800
Pyrite in quartz 15.971ct loose
Sale price¥15,800
American benitoite 0.076ct loose
Sale price¥25,800
American benitoite 0.074ct loose
Sale price¥22,800
American benitoite 0.076ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.117ct loose
Sale price¥19,800
Brazilian dumortierite in quartz 1.186ct loose (faceted cut)
Sale price¥12,800
Brazilian dumortierite in quartz 0.986ct loose (faceted cut)
Sale price¥12,800
Brazilian dumortierite in quartz 1.678ct loose (faceted cut)
Sale price¥18,800
Brazilian dumortierite in quartz 2.625ct loose (faceted cut)
Sale price¥26,800
Brazilian dumortierite in quartz 1.971ct loose (faceted cut)
Sale price¥19,800
Brazilian dumortierite in quartz 1.390ct loose (faceted cut)
Sale price¥15,800
Brazilian dumortierite in quartz 1.573ct loose (faceted cut)
Sale price¥18,800
Pakistani oil-in quartz 0.361ct loose
Sale price¥11,000
Pakistani oil-in quartz 0.535ct loose
Sale price¥18,800
Brazilian dumortierite in quartz 1.906ct loose (faceted cut)
Sale price¥25,800
Brazilian dumortierite in quartz 2.227ct loose (faceted cut)
Sale price¥25,800
Brazilian dumortierite in quartz 0.979ct loose (faceted cut)
Sale price¥14,800
Brazilian dumortierite in quartz 1.060ct loose (faceted cut)
Sale price¥15,800
Brazilian ametrine 8.849ct loose
Sale price¥12,800
Benitoite 0.104ct loose (emerald cut)
Sale price¥29,800
Benitoite 2.5mm/0.065ct loose
Sale price¥17,800
Benitoite 2.5mm/0.079ct loose
Sale price¥23,800
Tibetan bicolor andesine 1.818ct loose
Sale price¥21,800
Benitoite 0.069ct loose
Sale price¥25,800
South African yellow diamond (makeable) 0.202ct rough stone
Sale price¥17,800
South African gray diamond (makeable) 0.169ct rough stone
Sale price¥15,800
South African yellow diamond (makeable) 0.159ct rough stone
Sale price¥15,800
Paraiba tourmaline from Brazil 0.038ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.037ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.039ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.036ct loose
Sale price¥25,800
Brazilian Green Spodumene 2.132ct Loose Stone
Sale price¥12,800
Brazilian Green Spodumene 2.033ct Loose Stone
Sale price¥12,800
Brazilian Green Spodumene 1.999ct Loose Stone
Sale price¥12,800
Bekily Blue Garnet from Madagascar (color change garnet) 0.297ct loose
Sale price¥19,800
Andesine from Mongolia 1.354ct loose
Sale price¥11,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 6.004ct loose
Sale price¥15,800
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
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.