Rough diamond (makeable) 0.185ct loose (VS-SI)
Sale price¥19,800
Rough diamond (makeable) 0.345ct loose (VS-SI equivalent)
Sale price¥29,800
Brazilian emerald 3.3mm/0.119ct loose
Sale price¥22,800
Prehnite 5.3mm/0.469ct loose
Sale price¥3,980
Orange zircon 0.453ct loose
Sale price¥3,980
Zircon 0.414ct loose
Sale price¥3,980
Brazilian emerald cat's eye 0.459ct loose
Sale price¥5,980
Paraiba tourmaline from Brazil 0.129ct loose (CuO:0.8%,MnO:0.1%)
Sale price¥48,800
Paraiba tourmaline from Brazil 0.101ct loose (CuO:0.9%,MnO:0.1%)
Sale price¥39,800
Blue tourmaline from Afghanistan 0.209ct loose
Sale price¥2,980
Blue tourmaline from Afghanistan 3.5mm/0.178ct loose
Sale price¥3,980
Yellow tourmaline 0.431ct loose stone
Sale price¥3,980
Color change sapphire 0.283ct loose
Sale price¥3,980
Color change sapphire 0.401ct loose
Sale price¥3,980
Bicolor Benitoite 0.194ct loose (square cut)
Sale price¥128,000
Andalusite 5mm/0.480ct loose
Sale price¥3,980
[12551639] Triplite 0.322ct loose stone
Sale price¥15,800
[Posted in 12548907] Yellow tourmaline 0.469ct loose
Sale price¥8,800
[Posted 12548489] Cornell pin from Tanzania 0.286ct loose
Sale price¥19,800
[Posted 12548486] Cornerpine from Tanzania 0.312ct loose
Sale price¥25,800
[12547847 published] Bicolor tourmaline 0.398ct loose
Sale price¥8,800
[Posted 12546182] Triplite 0.231ct loose
Sale price¥12,800
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
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
Italian leucite 0.130ct loose
Sale price¥8,800
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
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.