Felspar 3.330ct loose from Sri Lanka
Sale price¥8,800
Felspar 1.939ct loose from Sri Lanka
Sale price¥5,980
Synthetic Moissanite 0.632ct loose stone (tie cut)
Sale price¥6,980
Synthetic Moissanite 0.509ct loose stone (tie cut)
Sale price¥6,980
Colombian trapiche emerald (reverse trapiche) 0.072ct loose
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.095ct loose
Sale price¥8,800
Colombian trapiche emerald (reverse trapiche) 0.084ct loose
Sale price¥9,800
Colombian trapiche emerald (reverse trapiche) 0.053ct loose
Sale price¥8,800
Spanish Andalusite 0.317ct loose stone
Sale price¥8,800
Andalusite 0.293ct loose stone
Sale price¥6,980
Colombian trapiche emerald (reverse trapiche) 0.093ct loose
Sale price¥9,800
Diamond 0.061ct loose (trapeze cut, VS class equivalent)
Sale price¥9,800
Diamond 0.042ct loose (trapeze cut, VS class equivalent)
Sale price¥8,800
Diamond 0.039ct loose (trapeze cut, equivalent to VS class)
Sale price¥7,980
Pink tourmaline (rose cut) 0.512ct loose
Sale price¥8,800
Yellow sapphire from Madagascar 0.232ct loose
Sale price¥7,980
Yellow sapphire from Madagascar 0.207ct loose
Sale price¥7,980
Madagascar sapphire 0.205ct loose
Sale price¥9,800
Green sapphire from Madagascar 0.199ct loose
Sale price¥7,980
Yellow sapphire from Madagascar 0.181ct loose
Sale price¥5,980
Ice blue sapphire from Madagascar 0.181ct loose
Sale price¥7,980
Bicolor tourmaline 0.397ct loose
Sale price¥8,800
Ethiopian Opal 6mm/0.952ct Loose (Sphere)
Sale price¥8,800
Chrysoberyl cat's eye 0.712ct loose
Sale price¥9,800
Sri Lankan star sapphire 1.323ct loose
Sale price¥6,980
Sri Lankan star sapphire 1.061ct loose
Sale price¥8,800
Prehnite 5.6mm/0.565ct loose
Sale price¥5,980
Pink zircon 0.508ct loose
Sale price¥9,800
Goethite in Amethyst 0.806ct loose stone
Sale price¥6,980
Brazilian emerald cat's eye 0.459ct loose
Sale price¥6,980
Blue tourmaline from Afghanistan 0.213ct loose
Sale price¥5,980
Blue tourmaline from Afghanistan 0.209ct loose
Sale price¥6,980
Blue tourmaline from Afghanistan 3.5mm/0.178ct loose
Sale price¥6,980
Yellow tourmaline 0.431ct loose stone
Sale price¥5,980
Rutilated Quartz (Rutilated Quartz) 6.402ct Loose
Sale price¥6,980
Color change sapphire 0.401ct loose
Sale price¥6,980
Lepidocrocite in quartz 0.692ct loose
Sale price¥8,800
Madagascar Apatite 0.763ct Loose Stone
Sale price¥8,800
Purple spinel 0.754ct loose
Sale price¥9,800
Lavender spinel 0.305ct loose
Sale price¥7,980
Bicolor tourmaline 0.505ct loose (rose cut)
Sale price¥8,800
Bicolor tourmaline 0.669ct loose (rose cut)
Sale price¥9,800
Bicolor tourmaline 0.549ct loose (rose cut)
Sale price¥9,800
Brazilian blue tourmaline 0.376ct loose
Sale price¥8,800
Dendritic quartz 7.997ct loose
Sale price¥9,800
Brazilian lepidocrocite in quartz 2.589ct loose
Sale price¥5,980
British Rosary Fluorite 4.738ct loose
Sale price¥9,800
British Rosary Fluorite 1.841ct loose
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.