Ethiopian Opal 41.967ct Rough Stone
Sale price¥33,800
Brazilian Pink Tourmaline 1.799ct Loose Stone
Sale price¥35,800
South African Rhodochrosite 0.457ct loose stone
Sale price¥45,800
Diamond (cabochon cut) 0.233ct loose
Sale price¥39,800
Brazilian parti-color tourmaline 1.412ct loose stone
Sale price¥39,800
Australian black opal 4.528ct loose
Sale price¥39,800
Australian black opal 2.591ct loose stone
Sale price¥39,800
Brazilian Euclase (Bicolor Euclase) 0.302ct Loose Stone
Sale price¥49,800
Brazilian Euclase (Bicolor Euclase) 0.199ct Loose Stone
Sale price¥45,800
Brazilian Rubellite Cat's Eye 1.484ct Loose Stone
Sale price¥39,800
Hackmanite rough stone from Afghanistan, 7.183ct
Sale price¥39,800
Congo Dioptase 79.498ct rough stone
Sale price¥31,800
Congo Dioptase 85.471ct rough stone
Sale price¥34,800
Brazilian Paraiba Tourmaline in Quartz 2.403ct loose stone
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 1.917ct loose stone
Sale price¥42,800
Colombian Trapiche Emerald 0.712ct Loose
Sale price¥39,800
[Takeshi Yamamoto] Bicolor fluorite 15.624ct loose stone
Sale price¥45,800
Mexican Fire Opal 1.341ct Loose
Sale price¥39,800
Tanzanian Blue Spinel 1.028ct Loose Stone
Sale price¥39,800
Tanzanite from Tanzania 1.36ct loose stone
Sale price¥49,800
Unheated Ruby 0.330ct Loose AIGS
Sale price¥35,800
Burmese Ruby 0.418ct Loose Stone Japan-Germany
Sale price¥35,800
Burmese unheated ruby 0.245ct loose stone by Nikkei
Sale price¥39,800
Spanish Sphalerite 7mm/1.676ct loose stone
Sale price¥35,800
Australian black opal 0.386ct loose stone
Sale price¥39,800
Brazilian Rubellite (Red Tourmaline) 1.525ct Loose Stone
Sale price¥39,800
Brazilian Paraiba tourmaline 0.240ct loose (CuO:1.5%, MnO:1.8%)
Sale price¥45,800
Pakistani emerald 0.436ct loose stone
Sale price¥49,800
Dominican Republic Conch Pearl 1.60ct Loose
Sale price¥39,800
Rhodochrosite from South Africa 4.2mm/0.409ct loose
Sale price¥39,800
[Clover in cut] Mexican opal 7mm/0,648ct {Collaboration} Loose patch
Sale price¥45,800
Mozambique Rubellite 1.706ct Loose Stone
Sale price¥39,800
Andesine Labradorite (also known as Blue Moonstone) 1.096ct loose stone
Sale price¥45,800
Andesine Labradorite (also known as Blue Moonstone) 0.949ct loose stone
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 2.827ct loose stone
Sale price¥49,800
Brazilian Paraiba Tourmaline in Quartz 3.049ct loose stone
Sale price¥49,800
Colombian Trapiche Emerald 0.629ct Loose
Sale price¥34,800
Kenyan Gold Sheen Sapphire 3.6mm/0.302ct Loose Stone
Sale price¥35,800
Myanmar Taaffeite 0.650ct Loose GIT
Sale price¥39,800
Padparadscha Sapphire 0.548ct Loose DGL
Sale price¥49,800
Diamond 0.171ct loose stone (E, VS2, radiant cut)
Sale price¥35,800
American Benitoite 1.8mm/0.159ct loose stone (gradation)
Sale price¥39,800
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.