Synthetic Opal (Synthetic Black Opal) 10.910ct Loose
Sale price¥69,800
Synthetic Opal (Synthetic Black Opal) 1.532ct Loose
Sale price¥15,800
Madagascar Purple Sapphire 0.433ct Loose Stone
Sale price¥14,800
Mexican Opal (Faceted Cut) 1.052ct Loose
Sale price¥19,800
Mexican Opal (Faceted Cut) 0.640ct Loose
Sale price¥14,800
Mexican Fire Opal (Faceted) 6.1mm/0.450ct Loose
Sale price¥12,800
Mexican Fire Opal (Faceted Cut) 0.352ct Loose
Sale price¥9,800
Diamond 3.0mm/0.123ct loose stone (D, VS2, octagonal cut)
Sale price¥28,800
Mexican Opal 1.639ct Loose (Contralus Opal)
Sale price¥29,800
Bicolor sapphire 2.040ct loose stone
Sale price¥59,800
[Sakura Shape] Mexican Opal 2.551ct Loose Patch
Sale price¥59,800
Synthetic Opal (Synthetic Black Opal) 0.651ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.272ct Loose (Bicolor)
Sale price¥12,800
Colombian emerald 3.5mm/0.150ct loose stone
Sale price¥22,800
Non-Oil Emerald 1.070ct Loose Gübelin Certificate
Sale price¥698,000
Pt900/Pt850 Australian Black Opal 0.37ct Diamond 0.73ct Necklace
Sale price¥198,000
Burmese Ruby 0.418ct Loose Stone Japan-Germany
Sale price¥35,800
Myanmar Ruby 0.283ct Loose
Sale price¥29,800
Emerald 0.484ct loose
Sale price¥18,800
Montana Sapphire 3.7mm/0.272ct Loose Stone (Blue Sapphire)
Sale price¥9,800
Pakistan Ruby in Quartz 1.429ct Loose Stone
Sale price¥12,800
Australian Black Opal 0.386ct Loose Stone
Sale price¥39,800
Montana Sapphire (Blue Sapphire) 0.207ct Loose
Sale price¥6,980
Ruby 0.284ct loose
Sale price¥15,800
Sri Lankan Blue Sapphire 0.226ct Loose
Sale price¥14,800
Mexican Yellow Opal 0.673ct Loose
Sale price¥8,800
Mexican Yellow Opal 0.428ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.261ct Loose
Sale price¥12,800
Sri Lankan White Sapphire 0.385ct Loose
Sale price¥14,800
Mexican Cantera Opal 5.647ct Loose
Sale price¥19,800
Mexican Cantera Opal 2.809ct Loose
Sale price¥25,800
Mexican Cantera Opal 3.280ct Loose
Sale price¥9,800
Mexican Cantera Opal 4.973ct Loose
Sale price¥15,800
Mexican Cantera Opal 7.460ct Loose
Sale price¥29,800
Mexican Cantera Opal 2.982ct Loose
Sale price¥14,800
Mexican Cantera Opal 1.534ct Loose
Sale price¥8,800
Mexican Cantera Opal 11.105ct Loose
Sale price¥12,800
Mexican Fire Opal 0.780ct Loose
Sale price¥12,800
Australian Shell Opal (Shell Opal) 51.801ct Rough Stone
Sale price¥25,800
Kenyan Gold Sheen Sapphire 4mm/0.438ct Loose
Sale price¥55,800
Diamond (cabochon cut) 0.183ct loose
Sale price¥24,800
Diamond (cabochon cut) 0.366ct loose
Sale price¥59,800
Kenyan Gold Sheen Sapphire 3.6mm/0.302ct Loose Stone
Sale price¥35,800
Kenyan Gold Sheen Sapphire 3.5mm/0.273ct Loose Stone
Sale price¥22,800
Colombian Trapiche Emerald 1.494ct Loose
Sale price¥69,800
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.