Madagascar Pezzottaite 3.5mm/0.153ct loose stone
Sale price¥5,980
Madagascar Pezzottaite 4mm/0.242ct loose stone
Sale price¥8,800
Mexican Opal 1.205ct Loose (Contrarus Opal, Faceted Cut)
Sale price¥29,800
Color change sapphire 0.453ct loose
Sale price¥5,980
Tanzanian Kornerupine 0.264ct loose stone
Sale price¥29,800
Tanzanian Kornerupine 0.272ct loose stone
Sale price¥22,800
Pezzotite from Madagascar 0.128ct loose
Sale price¥6,980
Pezzottite from Madagascar 0.142ct loose
Sale price¥9,800
Pezzottite from Madagascar 0.147ct loose
Sale price¥9,800
Pezzottite from Madagascar 0.115ct loose
Sale price¥5,980
Pezzotite from Madagascar 0.129ct loose
Sale price¥6,980
Brazilian dumortierite in quartz 0.496ct loose
Sale price¥6,580
Brazilian dumortierite in quartz 0.309ct loose
Sale price¥4,980
Afghanistan Hackmanite 0.111ct loose stone
Sale price¥6,980
Pezzotite cat's eye from Madagascar 0.310ct loose
Sale price¥24,800
Bicolor Euclase from Zimbabwe 0.197ct loose
Sale price¥88,800
Bicolor Euclase from Zimbabwe 0.211ct loose
Sale price¥98,000
Unheated silky pink sapphire from Vietnam 0.202ct loose
Sale price¥8,800
Bicolor Euclase from Zimbabwe 0.375ct Ruth Japanese-German Edition
Sale price¥128,000
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥55,800
Paraiba tourmaline from Mozambique 0.130ct loose
Sale price¥22,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥39,800
Blue tourmaline 0.369ct loose Japanese-German book
Sale price¥8,800
Lazurite in quartz 0.353ct loose
Sale price¥9,800
Brazilian imperial topaz 0.359ct loose
Sale price¥15,800
Australian black opal 0.310ct loose
Sale price¥8,800
Rhodochrosite 0.331ct loose from Detroit City
Sale price¥29,800
Indigolite tourmaline 0.386ct loose
Sale price¥7,980
Paraiba tourmaline from Mozambique 0.148ct loose
Sale price¥14,800
Paraiba tourmaline from Mozambique 0.227ct loose
Sale price¥25,800
Pink tourmaline 0.460ct loose
Sale price¥6,980
Pink tourmaline 0.489ct loose
Sale price¥6,980
Opal from Indonesia 0.217ct loose
Sale price¥5,980
Paraiba tourmaline from Brazil 0.117ct loose
Sale price¥19,800
Bicolor tourmaline 0.467ct loose
Sale price¥6,980
Pakistani oil-in quartz 0.361ct loose
Sale price¥11,000
Benitoite 0.123ct loose (emerald cut)
Sale price¥39,800
Benitoite 0.107ct loose (emerald cut)
Sale price¥35,800
Benitoite 0.104ct loose (emerald cut)
Sale price¥29,800
Unheated silky pink sapphire from Vietnam 0.161ct loose
Sale price¥7,980
South African yellow diamond (makeable) 0.202ct rough stone
Sale price¥17,800
South African yellow diamond (makeable) 0.193ct rough stone
Sale price¥9,800
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
Conch pearl (with flame pattern) 0.439ct loose
Sale price¥39,800
Conch pearl (with flame pattern) 0.387ct loose
Sale price¥39,800
Benitoite 2.2mm/0.229ct loose
Sale price¥57,800
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.