Brazilian alexandrite 0.070ct loose
Sale price¥39,800
Synthetic Alexandrite 4.3mm/0.430ct Loose Stone
Sale price¥12,800
Tanzanite from Tanzania 0.416ct loose stone
Sale price¥12,800
Madagascar Blue Sapphire 0.347ct Loose Stone with Appraisal Report
Sale price¥25,800
Zimbabwe Green Diamond Rough (Sawable) 0.428ct Rough Stone with Trigon
Sale price¥158,000
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥3,980
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.464ct loose
Sale price¥9,800
American red beryl 0.184ct loose
Sale price¥39,800
Cambodian blue zircon 0.258ct loose
Sale price¥6,980
Cambodian blue zircon 0.197ct loose
Sale price¥5,980
Cambodian blue zircon 0.217ct loose
Sale price¥6,980
Cambodian blue zircon 0.267ct loose
Sale price¥6,980
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
Cornelpine from Tanzania 0.331ct loose
Sale price¥22,800
Tanzanian Kornerupine 3.4mm/0.185ct Loose Stone
Sale price¥9,800
Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS
Sale price¥79,800
Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough Stone with Trigon
Sale price¥148,000
Madeira citrine 0.170ct loose
Sale price¥5,980
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.240ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥45,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥35,800
Bicolor Zircon 0.468ct Ruth Japanese-German Dictionary
Sale price¥25,800
Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2)
Sale price¥59,800
Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1)
Sale price¥35,800
Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1)
Sale price¥47,800
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
American Anthill Garnet 4.0mm/0.359ct Loose
Sale price¥12,800
Ant Hill Garnet from the USA, 4.0mm/0.332ct, loose
Sale price¥11,000
[Sale on March 22nd at 10 PM] Golden Zircon 0.416ct Loose Stone
Sale price¥9,800
Mexican Opal 0.353ct Loose (Faceted Cut)
Sale price¥9,800
Sri Lankan Hessonite Garnet 0.441ct Loose Stone
Sale price¥8,800
Synthetic Alexandrite 0.338ct loose stone
Sale price¥12,800
Zimbabwean bi-color euclase from Zimbabwe, 0.109 ct, loose stone
Sale price¥59,800
Benitoite from the USA, 0.064ct loose
Sale price¥29,800
German Apatite 0.048ct Loose Stone
Sale price¥19,800
US-sourced Oregon Sunstone 0.428ct Loose
Sale price¥18,800
Tanzanian Mandarin Garnet, 0.418 ct Loose Stone
Sale price¥25,800
0.175ct loose hot pink sapphire from Mozambique
Sale price¥15,800
Mexican Fire Opal 0.459ct Loose
Sale price¥18,800
Colombian emerald 0.155ct loose stone
Sale price¥29,800
Sri Lankan Blue Sapphire (Ice Blue) 0.272ct Loose
Sale price¥12,800
Zimbabwean Bicolor Euclase 0.227ct Loose Stone
Sale price¥49,800
Tanzanian Bicolor Zoisite 0.312ct Loose Stone
Sale price¥12,800
Tanzanian Bekiri Blue Garnet (Color Change Garnet) 0.102ct Loose Stone
Sale price¥12,800
Diamond rough (makeable) 0.284ct rough
Sale price¥12,800
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.