Colombian pyrite emerald 2.380ct rough stone
Sale price¥29,800
South African Diamond Rough (Sawable) 0.107ct Rough Trigon
Sale price¥42,800
Zimbabwe bicolor euclase rough stone 0.367ct
Sale price¥29,800
Brazilian Paraiba tourmaline 0.184ct raw stone (CuO:1.5%, MnO:0.6%)
Sale price¥12,800
Brazilian Paraiba tourmaline 0.180ct raw stone (CuO:1.8%, MnO:0.1%)
Sale price¥12,800
Colombian emerald 8.90ct rough stone
Sale price¥45,800
Tanzanite rough stone from Tanzania 5.930ct
Sale price¥5,980
Zimbabwe bicolor euclase rough stone 0.321ct
Sale price¥18,800
Zimbabwe bicolor euclase rough stone 0.356ct
Sale price¥29,800
Zimbabwe bicolor euclase rough stone 0.165ct
Sale price¥18,800
South African diamond rough (sawable) 0.083ct rough
Sale price¥32,800
South African diamond rough (sawable) 0.102ct rough (with trigon)
Sale price¥45,800
South African diamond rough (sawable) 0.087ct rough
Sale price¥34,800
Diamond rough (sawable) 0.101ct rough (with trigon)
Sale price¥22,800
South African diamond rough (sawable) 0.096ct rough (with trigon)
Sale price¥39,800
South African diamond rough (sawable) 0.112ct rough
Sale price¥44,800
South African diamond rough (sawable) 0.091ct rough (trigon)
Sale price¥35,800
Colombian emerald rough stone 37.764ct (Gachala mine)
Sale price¥598,000
Russian diamond rough (sawable) 0.618ct rough (trigon)
Sale price¥228,000
Colombian Trapiche Emerald 0.923ct Rough Stone
Sale price¥45,800
Tanzanian bicolor tanzanite 4.804ct rough stone
Sale price¥18,800
Ethiopian Opal 41.967ct Rough Stone
Sale price¥33,800
Ethiopian Opal 24.319ct Rough Stone
Sale price¥19,800
Ethiopian Opal 15.845ct Rough Stone
Sale price¥15,800
Ethiopian Opal 14.344ct Rough Stone
Sale price¥14,800
Peruvian Rhodochrosite 2-stone set 12.816ct rough stone
Sale price¥15,800
Congo Dioptase 29.012ct rough stone
Sale price¥5,980
Hackmanite rough stone from Afghanistan, 7.183ct
Sale price¥39,800
Congo Dioptase 24.371ct rough stone
Sale price¥9,800
Congo Dioptase 24.892ct rough stone
Sale price¥9,800
Congo Dioptase 32.632ct rough stone
Sale price¥15,800
Congo Dioptase 46.537ct rough stone
Sale price¥18,800
Congo Dioptase 52.488ct rough stone
Sale price¥19,800
Congo Dioptase 79.498ct rough stone
Sale price¥31,800
Congo Dioptase 34.022ct rough stone
Sale price¥15,800
Congo Dioptase 85.471ct rough stone
Sale price¥34,800
Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2
Sale price¥8,800
Hackmanite from Afghanistan, 27.410ct rough stone
Sale price¥9,800
Tanzanian bicolor tanzanite 3.018ct rough and loose stone set of 2
Sale price¥6,980
Hackmanite from Afghanistan, 15.600ct rough stone
Sale price¥8,800
Australian Shell Opal (Shell Opal) 51.801ct Rough Stone
Sale price¥25,800
Russian Yellow Diamond Rough (Sawable) 0.306ct Rough (Trigon)
Sale price¥98,000
Fluorite rough stone from Yaogangshan, China, 72.518ct
Sale price¥9,800
Colombian emerald rough stone 1.707ct
Sale price¥18,800
Japanese style twin crystal 5.771ct raw stone
Sale price¥19,800
Japanese style twin crystal 4.727ct raw stone
Sale price¥15,800
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.