Brazilian alexandrite 0.151ct loose
Sale price¥25,800
Sapphire from Sri Lanka (Safarin) 0.245ct loose
Sale price¥12,800
Colombian trapiche emerald (reverse trapiche) 0.134ct rough stone
Sale price¥12,800
South African diamond rough stone 0.430ct
Sale price¥9,800
Colombian trapiche emerald (reverse trapiche) 0.178ct rough stone
Sale price¥15,800
Pezzotite from Madagascar 0.257ct loose
Sale price¥15,800
Veilinite from Pakistan (Vailinite) 0.168ct loose
Sale price¥39,800
Andalusite from Madagascar 4.6mm/0.369ct loose stone
Sale price¥5,980
Sweet Home Rhodochrosite 2.7mm/0.108ct Loose Stone
Sale price¥12,800
Mexican Fire Opal 0.448ct Loose
Sale price¥3,980
Kenyan gold sheen sapphire 0.257ct loose
Sale price¥19,800
Tibetan Andesine 5.2mm/0.453ct Loose Stone
Sale price¥4,980
Myanmar Musgravite 0.351ct Loose Stone Japan-Germany
Sale price¥188,000
American Red Beryl 0.104ct Loose
Sale price¥15,800
Paraiba tourmaline from Brazil 0.217ct loose (CuO:1.5%, MnO:0.5%)
Sale price¥39,800
Sri Lankan bicolor sapphire 0.304ct loose stone
Sale price¥14,800
South African diamond rough stone 0.330ct
Sale price¥5,980
American Red Beryl 0.200ct Loose (Heart Shape) Nikkeikan
Sale price¥35,800
American Red Beryl 0.252ct Loose
Sale price¥39,800
Colombian emerald cat's eye 0.108ct loose
Sale price¥8,800
South African diamond rough stone 0.210ct
Sale price¥8,800
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
Euclase from Brazil 0.210ct Ruth Japanese German edition
Sale price¥29,800
Brazilian Euclase 5.0mm/0.492ct Loose Stone
Sale price¥9,800
Namibian Jeremejevite 0.153ct loose stone by Nikkei
Sale price¥15,800
Namibian Jeremejevite 0.118ct loose stone by Nikkei
Sale price¥12,800
Diamond 0.169ct loose (F, VS2)
Sale price¥18,800
Madagascar Grandidierite 0.180ct loose stone
Sale price¥14,800
Tanzanian bicolor sapphire 0.262ct loose stone
Sale price¥19,800
Paraiba tourmaline from Brazil 3.1mm/0.151ct loose (CuO:1.1%, MnO:3.8%)
Sale price¥29,800
Bicolor pink euclase from Brazil 0.310ct loose Japanese-German edition
Sale price¥128,000
Madagascar Petzotite Cat's Eye 0.323ct Loose Stone
Sale price¥22,800
Madagascar Petzotite Cat's Eye 0.393ct Loose Stone
Sale price¥29,800
Myanmar Purple Spinel 0.311ct Loose Stone
Sale price¥8,800
Blue beryl (Macis beryl) 0.172ct loose stone
Sale price¥8,800
Zimbabwe Bicolor Euclase 0.405ct Loose Stone by Nikkei
Sale price¥298,000
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.