Unheated Mozambique Ruby 2.7mm/0.135ct Loose
Sale price¥19,800
Colombian pyrite-mica emerald 0.815ct loose stone
Sale price¥39,800
Colombian Trapiche emerald 0.424ct rough stone
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Colombian trapiche emerald (reverse trapiche) 0.152ct rough stone
Sale price¥17,800
Colombian Trapiche Emerald (Reverse Trapiche) 0.183ct Rough Stone
Sale price¥18,800
Ruby 0.289ct loose stone by Takakikyo
Sale price¥12,800
Pigeon Blood Ruby 0.295ct Loose AIGS
Sale price¥49,800
Colombian oil-free emerald 0.310ct loose stone
Sale price¥298,000
Brazilian Dumortierite in Quartz 0.495ct loose stone
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.387ct loose stone
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.432ct Loose Stone
Sale price¥6,980
Madagascar Pezzottaite 0.229ct loose stone
Sale price¥19,800
Madagascar Pezzottaite 0.554ct loose stone
Sale price¥19,800
Yellow Zircon 0.268ct Loose
Sale price¥9,800
Myanmar Trapiche Ruby 0.250ct Loose
Sale price¥15,800
Myanmar Trapiche Ruby 0.342ct Loose
Sale price¥15,800
Salt and pepper diamond 0.446ct loose
Sale price¥39,800
Myanmar Leuco Garnet 0.324ct loose stone
Sale price¥39,800
[Rouge cut] Rhodolite garnet 0.410ct loose stone
Sale price¥8,800
Cambodian Blue Zircon 0.348ct Loose Stone
Sale price¥6,980
Green Sapphire 0.299ct Loose (Silky Sapphire)
Sale price¥3,980
Brazilian Imperial Topaz 0.826ct Loose
Sale price¥19,800
Pink spinel 0.365ct loose stone
Sale price¥12,800
Bicolor Zoisite 0.203ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.273ct loose stone
Sale price¥7,980
Tanzanite 0.328ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.229ct loose stone
Sale price¥6,980
Ruby 0.282ct loose
Sale price¥8,800
Conch pearl (with flame pattern) 0.311ct loose
Sale price¥39,800
Bicolor Benitoite 0.157ct loose stone
Sale price¥22,800
Benitoite 0.300ct loose stone (cabochon cut)
Sale price¥12,800
Benitoite 0.311ct loose stone (cabochon cut)
Sale price¥12,800
Dumortierite in quartz 0.387ct loose
Sale price¥8,800
Zoisite 0.216ct loose stone (heart shape)
Sale price¥8,800
Blue Garnite from Nigeria 0.514ct Ruth Japanese-German Edition
Sale price¥59,800
Australian rainbow lattice sunstone 0.378ct loose
Sale price¥5,980
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.464ct loose
Sale price¥12,800
Montana Sapphire 0.254ct loose
Sale price¥9,800
American red beryl 0.207ct loose
Sale price¥49,800
American red beryl 0.116ct loose
Sale price¥29,800
American red beryl 0.184ct loose
Sale price¥46,800
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.