Euclase from Zimbabwe 0.409ct loose
Sale price¥45,800
Grandidierite 0.206ct loose
Sale price¥22,800
Mali Garnet (Grossular/Andradite Garnet) 4.5mm/0.497ct Loose
Sale price¥8,800
UV type mint garnet 0.435ct loose
Sale price¥3,980
Brazilian Paraiba tourmaline 0.370ct loose (CuO:1.0%, MnO:1.2%)
Sale price¥59,800
Paraiba tourmaline from Mozambique 0.266ct loose
Sale price¥25,800
Bicolor tanzanite 0.492ct raw stone from Tanzania
Sale price¥6,980
Bicolor tourmaline 0.418ct loose
Sale price¥3,980
Hemimorphite from Congo 0.432ct loose
Sale price¥6,980
[On sale at 10pm on September 28th] Oil-free red beryl 0.200ct loose GIA
Sale price¥168,000
Italian leucite 0.130ct loose
Sale price¥8,800
Brazilian imperial topaz 0.467ct loose
Sale price¥15,800
Brazilian pink imperial topaz 0.322ct loose
Sale price¥12,800
Brazilian Paraiba tourmaline 0.275ct loose (CuO:1.5%.MnO:2.3%)
Sale price¥358,000
Colombian emerald cat's eye 0.190ct loose
Sale price¥15,800
Red spinel 0.195ct loose
Sale price¥5,980
Paraiba tourmaline from Brazil 0.154ct loose (CuO:1.1wt%, MnO:1.4wt%)
Sale price¥128,000
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
Benitoite 2.7mm/0.114ct loose
Sale price¥25,800
Myanmar pink spinel 0.291ct loose stone
Sale price¥6,980
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Montebrasite from Madagascar 0.328ct loose
Sale price¥3,980
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥39,800
Bicolor pink star sapphire from Mogok 0.360ct loose
Sale price¥24,800
Bicolor tourmaline 0.435ct loose (rose cut)
Sale price¥5,980
Pink tourmaline 0.482ct loose stone
Sale price¥5,980
Tagtupite from Greenland 0.477ct loose
Sale price¥9,800
Leuko garnet from Myanmar 0.294ct loose
Sale price¥15,800
Taaffeite 0.241ct loose Japanese and German
Sale price¥39,800
Paraiba tourmaline from Brazil 0.205ct loose (CuO:0.8%, MnO:3.1%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.167ct loose (CuO:1.6%, MnO:3.0%)
Sale price¥29,800
Paraiba tourmaline from Brazil 0.226ct loose (CuO:0.7%, MnO:3.6%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.204ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.239ct loose
Sale price¥45,800
Paraiba tourmaline from Brazil 0.232ct loose
Sale price¥45,800
Paraiba tourmaline from Brazil 0.240ct loose (CuO:0.7%, MnO:3.8%)
Sale price¥45,800
Russian demantoid garnet (horsetail recognized) 0.214ct loose
Sale price¥49,800
Red beryl 0.173ct loose
Sale price¥29,800
Russian demantoid garnet (horsetail recognized) 4.2mm/0.336ct loose
Sale price¥79,800
Pink spinel 0.290ct loose
Sale price¥5,980
Purple spinel 0.210ct loose
Sale price¥3,980
Lavender spinel 0.160ct loose
Sale price¥3,980
Russian demantoid garnet (horsetail recognized) 4.4mm/0.394ct loose
Sale price¥69,800
Russian demantoid garnet (horsetail recognized) 4.6mm/0.423ct loose
Sale price¥79,800
Paraiba tourmaline from Brazil 0.134ct loose (CuO:0.8%, MnO:2.3%)
Sale price¥25,800
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.