Synthetic Alexandrite 0.570ct loose stone
Sale price¥18,800
Kasharai Amethyst 0.430ct Loose
Sale price¥12,800
Australian black opal 0.544ct loose stone
Sale price¥18,800
Brazilian Sky Blue Topaz (untreated) 2.560ct loose stone
Sale price¥12,800
Oregon Sunstone from the United States 1.930ct loose stone
Sale price¥18,800
Tanzania Peristerite 0.911ct Loose Stone (Royal Blue Moonstone)
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.350ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.474ct Loose
Sale price¥15,800
Brazilian rutilated quartz (rutilated quartz) 7.741ct loose stone
Sale price¥15,800
Brazilian unheated pink imperial topaz (sherry pink) 0.254ct loose stone
Sale price¥14,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.794ct Loose Stone
Sale price¥15,800
Sri Lankan bicolor sapphire 0.484ct loose stone
Sale price¥12,800
Colombian pyrite-bearing euclase 23.430ct rough stone by Takakikyo
Sale price¥19,800
Colombian pyrite-bearing euclase 37.340ct rough stone by Takakikyo
Sale price¥12,800
Dominican Republic Conch Pearl 1.990ct Loose (with flame pattern)
Sale price¥29,800
Brazilian pyrite in quartz 57.230ct loose stone
Sale price¥25,800
Madagascar Bicolor Sapphire 0.626ct Loose
Sale price¥29,800
Mexican Danburite 6.780ct loose stone (light pink)
Sale price¥25,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.670ct Loose Stone
Sale price¥18,800
Australian Iron Opal 17.450ct Loose
Sale price¥12,800
Kunzite from Afghanistan 8.609ct loose stone
Sale price¥14,800
Australian Boulder Opal 41.770ct Loose
Sale price¥29,800
Australian Boulder Opal 15.020ct Loose
Sale price¥18,800
Australian Boulder Opal 12.220ct Loose
Sale price¥12,800
Mexican Fire Opal 1.330ct Loose (Contralus Opal)
Sale price¥19,800
Mexican Fire Opal 1.610ct Loose (Contralus Opal)
Sale price¥19,800
Sri Lankan bicolor sapphire 0.304ct loose stone
Sale price¥14,800
Diamond 3.3mm/0.131ct Loose (G, VS-1, EXCELLENT Heart & Cupid)
Sale price¥25,800
Sri Lankan Blue Sapphire 4.2mm/0.333ct Loose Stone
Sale price¥12,800
Brazilian Rutile Cat's Eye 3.856ct Loose Stone (Red Rutile Quartz)
Sale price¥18,800
Brazilian Rutile Cat's Eye 3.306ct Loose Stone (Red Rutile Quartz)
Sale price¥16,800
Colombian emerald cat's eye 0.421ct loose stone
Sale price¥12,800
Mozambique Rhodolite Garnet 5.7mm/1.188ct Loose Stone
Sale price¥12,800
Green Apatite from Madagascar 1.580ct loose stone
Sale price¥14,800
Mexican Fire Opal (Faceted Cut) 0.608ct Loose
Sale price¥12,800
Mexican Cantera Opal 14.458ct loose stone (faceted cut)
Sale price¥14,800
Synthetic Opal 2.026ct Loose
Sale price¥19,800
Blue beryl (Macis beryl) 0.250ct loose stone
Sale price¥12,800
Indian Moonstone 2.290ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.407ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.250ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.223ct Loose
Sale price¥12,800
Sri Lankan Blue Sapphire 4.3mm/0.371ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.531ct Loose Stone
Sale price¥29,800
Madagascar Blue Sapphire (Ice Blue) 0.694ct Loose
Sale price¥18,800
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.