Mexican fire opal (faceted cut) 0.387ct loose stone
Sale price¥14,800
Mexican Fire Opal (Faceted Cut) 0.918ct Loose
Sale price¥12,800
Mexican Fire Opal (Faceted Cut) 0.525ct Loose
Sale price¥12,800
Synthetic black opal 2.996ct loose stone
Sale price¥29,800
Madagascar Blue Sapphire (Ice Blue) 0.584ct Loose
Sale price¥19,800
Sri Lankan Blue Sapphire 0.251ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.365ct Loose
Sale price¥15,800
Pt950 Sri Lankan purple sapphire 0.318ct and blue sapphire earrings
Sale price¥39,800
Pt950 Colombian Euclase 0.07ct Diamond Ring
Sale price¥89,800
Brazilian Alexandrite 0.054ct Loose Stone (Emerald Cut)
Sale price¥18,800
Synthetic black opal 1.209ct loose stone
Sale price¥18,800
Madagascar Purple Sapphire 0.315ct Loose
Sale price¥12,800
Montana Sapphire 0.275ct Loose (Blue Sapphire)
Sale price¥8,800
Montana Sapphire 0.217ct Loose (Blue Sapphire)
Sale price¥8,800
Ethiopian Opal 6.0mm/0.584ct Loose
Sale price¥12,800
Brazilian copper rutilated quartz 1.445ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 2.051ct loose stone
Sale price¥8,800
0.095ct Brazilian Alexandrite Loose Stone (Emerald Cut)
Sale price¥35,800
Brazilian Alexandrite 0.071ct loose stone (emerald cut)
Sale price¥29,800
Colombian pyrite emerald 27.414ct loose stone
Sale price¥298,000
[Sakura Shape] Mexican Opal 8.2mm/1.465ct {Collaboration} Loose Patch
Sale price¥45,800
Colombian Trapiche Emerald 1.343ct Loose
Sale price¥69,800
Bicolor sapphire 0.244ct loose
Sale price¥15,800
Bicolor sapphire 0.180ct loose
Sale price¥12,800
Bicolor sapphire 0.225ct loose
Sale price¥15,800
Madagascar pink sapphire 0.486ct loose stone
Sale price¥12,800
Yellow sapphire from Sri Lanka 0.375ct loose
Sale price¥12,800
Madagascar sapphire 0.206ct loose stone
Sale price¥12,800
Madagascar Yellow Sapphire 0.493ct Loose
Sale price¥9,800
Unheated Sri Lankan purple sapphire 0.986ct loose stone
Sale price¥9,800
Brown diamond 0.554ct loose (cabochon cut, SI class equivalent)
Sale price¥69,800
South African diamond rough (sawable) 0.083ct rough
Sale price¥32,800
Sri Lankan Yellow Sapphire 0.297ct Loose
Sale price¥8,800
Colombian Trapiche Emerald 0.811ct Loose
Sale price¥59,800
Sri Lankan Yellow Sapphire 0.557ct Loose
Sale price¥12,800
South African diamond rough (sawable) 0.087ct rough
Sale price¥34,800
Madagascar pink sapphire 0.466ct loose stone
Sale price¥12,800
Sri Lankan Star Sapphire 5.0mm/0.892ct Loose Stone
Sale price¥9,800
Yellow Diamond 0.551ct Loose (Cabochon Cut)
Sale price¥49,800
Colombian emerald 0.126ct loose stone
Sale price¥15,800
Colombian emerald 3.7mm/0.207ct loose stone
Sale price¥22,800
Tanzanian bicolor sapphire 0.950ct loose stone
Sale price¥25,800
Tanzanian bicolor sapphire 0.707ct loose stone
Sale price¥18,800
Tanzanian bicolor sapphire 0.598ct loose stone
Sale price¥16,800
Tanzanian bicolor sapphire 0.571ct loose stone
Sale price¥15,800
Tanzanian bicolor sapphire 0.623ct loose stone
Sale price¥16,800
Madagascar Purple Sapphire 0.311ct Loose Stone
Sale price¥9,800
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.