Brazilian bicolor tourmaline 2.153ct loose stone
Sale price¥29,800
Brazilian Paraiba Tourmaline 0.177ct loose stone (CuO: 2.1%, MnO: 1.3%)
Sale price¥45,800
Unheated Brazilian Paraiba Tourmaline 0.038ct loose stone
Sale price¥59,800
Yellow tourmaline 0.238ct loose stone
Sale price¥4,980
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥22,800
Colombian Trapiche Emerald 0.746ct Loose
Sale price¥39,800
Bicolor Tanzanite 1.677ct rough stone
Sale price¥8,800
Bicolor Tanzanite 3.856ct rough stone
Sale price¥19,800
Bicolor Tanzanite 5.582ct rough stone
Sale price¥29,800
Brazilian Paraiba Tourmaline 0.216ct loose stone (CuO:1.2%, MnO:2.7%)
Sale price¥69,800
Unheated Brazilian Paraiba Tourmaline 0.110ct Loose Stone AIGS
Sale price¥258,000
Ukrainian bicolor topaz 5.622ct loose stone
Sale price¥198,000
Pink diaspore 0.351ct loose stone
Sale price¥9,800
Paraiba tourmaline from Mozambique 0.252ct loose
Sale price¥15,800
Paraiba Tourmaline from Mozambique 0.234ct loose stone
Sale price¥12,800
Diamond 0.042ct loose (VS class equivalent, emerald cut)
Sale price¥8,800
Diamond 3.4mm/0.144ct loose stone (I, VS1, Good)
Sale price¥16,800
Tanzanian Chrome Tourmaline 0.522ct Loose Stone
Sale price¥5,980
Colombian Trapiche Emerald 0.317ct Rough Stone
Sale price¥19,800
Colombian Trapiche emerald 0.424ct rough stone
Sale price¥39,800
Colombian Trapiche emerald 0.611ct rough stone
Sale price¥69,800
Colombian Trapiche emerald 0.418ct rough stone
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Colombian Trapiche Emerald (Reverse Trapiche) 0.073ct Rough Stone
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.078ct rough stone
Sale price¥7,980
Colombian trapiche emerald (reverse trapiche) 0.152ct rough stone
Sale price¥17,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.111ct Rough Stone
Sale price¥12,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.183ct Rough Stone
Sale price¥18,800
Diamond rough stone 0.967ct
Sale price¥5,980
Diamond rough stone 1.293ct
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.495ct loose stone
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.387ct loose stone
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.432ct Loose Stone
Sale price¥6,980
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥29,800
Kenyan Tsavorite 0.379ct loose stone
Sale price¥35,800
Tanzanite 1.004ct loose stone
Sale price¥22,800
Tanzanite 4.8mm/0.494ct loose stone
Sale price¥15,800
Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)
Sale price¥19,800
Bicolor Zoisite 0.450ct Loose Stone (Bicolor Tanzanite)
Sale price¥18,800
Lavender Tanzanite 0.784ct loose stone
Sale price¥14,800
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.