Canadian rough diamond (sawable) 0.096ct rough with trigon
Sale price¥29,800
Oil-in-quartz 22.073ct rough stone from Madagascar
Sale price¥4,980
Ubaite/dravite tourmaline 3.157ct rough stone
Sale price¥6,980
Uncut Canadian diamond (sawable) 0.103ct
Sale price¥29,800
South African yellow diamond (makeable) 0.202ct rough stone
Sale price¥15,800
South African gray diamond (makeable) 0.169ct rough stone
Sale price¥14,800
Demantoid garnet 15.468ct rough stone from Madagascar
Sale price¥9,800
Rough diamond (sawable) 0.466ct rough diamond (with trigon)
Sale price¥98,000
Diamond rough (makeable) 0.204ct rough
Sale price¥39,800
0.604ct rough diamond
Sale price¥12,800
Colombian emerald rough stone 7.924ct
Sale price¥9,800
Colombian emerald rough stone 5.895ct
Sale price¥9,800
Bicolor tanzanite 1.165ct rough stone from Tanzania
Sale price¥7,980
Bicolor tanzanite 1.121ct rough stone from Tanzania
Sale price¥6,980
Bicolor tanzanite 0.492ct raw stone from Tanzania
Sale price¥6,980
South African rough diamond (sawable) 0.105ct rough (with trigon)
Sale price¥39,800
Colombian Euclase 548.00ct rough stone
Sale price¥198,000
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥15,800
Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%)
Sale price¥19,800
Diamond 2.810ct rough stone
Sale price¥9,800
Colombian emerald rough stone 6.590ct
Sale price¥15,800
Colombian Euclase 1.365ct rough stone
Sale price¥29,800
[12541081 published] Emerald 9.380ct rough stone
Sale price¥4,980
Brazilian beryl 105.928ct raw stone
Sale price¥18,800
Opal 426.985ct rough stone
Sale price¥29,800
Zimbabwean Euclase 0.580ct Rough Stone
Sale price¥34,800
South African diamond rough stone 0.430ct
Sale price¥9,800
Colombian pyrite-bearing euclase 23.430ct rough stone by Takakikyo
Sale price¥19,800
Zimbabwe bicolor euclase rough stone 0.960ct
Sale price¥39,800
South African diamond rough stone 0.330ct
Sale price¥5,980
South African diamond rough stone 0.210ct
Sale price¥8,800
South African Diamond Rough (Sawable) 0.107ct Rough Trigon
Sale price¥42,800
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
South African diamond rough (sawable) 0.087ct rough
Sale price¥34,800
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
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 15.845ct Rough Stone
Sale price¥15,800
Ethiopian Opal 14.344ct Rough Stone
Sale price¥14,800
Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2
Sale price¥8,800
Tanzanian bicolor tanzanite 3.018ct rough and loose stone set of 2
Sale price¥6,980
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.