Colombian pyrite emerald 13.691ct loose stone
Sale price¥398,000
Brazilian Green Tourmaline 26.071ct Loose Stone (Sugarloaf Cut)
Sale price¥298,000
Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline)
Sale price¥298,000
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
Australian Shell Opal (Shell Opal) 73.321ct Rough Stone
Sale price¥49,800
Colombian Trapiche Emerald 0.392ct Loose
Sale price¥19,800
American Red Beryl 0.106ct Loose
Sale price¥24,800
Canary Yellow Tourmaline from Mozambique 0.223ct loose stone
Sale price¥8,800
American benitoite 0.074ct loose
Sale price¥8,800
Colombian Trapiche Emerald 0.222ct Loose
Sale price¥18,800
Tanzanian bicolor tanzanite rough stone 2.454ct
Sale price¥12,800
Tanzania Purple Zoisite Rough Stone 1.160ct
Sale price¥8,800
Russian rough diamond (sawable) 0.125ct loose
Sale price¥29,800
Colombian Trapiche Emerald 0.260ct Loose
Sale price¥14,800
Zimbabwean Blue Apatite (UV type) 1.056ct loose stone
Sale price¥15,800
Brazilian rutilated quartz (rutilated quartz) 8.247ct loose stone
Sale price¥14,800
Flower rutilated quartz 0.955ct loose stone
Sale price¥9,800
Brazilian Alexandrite 0.125ct loose stone
Sale price¥29,800
Brazilian Euclase 0.224ct Loose Stone (Bicolor Euclase)
Sale price¥18,800
Pigeon Blood Ruby 0.38ct Loose AIGS
Sale price¥59,800
Brazilian pink tourmaline 1.458ct loose stone
Sale price¥39,800
Amazon Green Opal 0.814ct Loose (Faceted Cut)
Sale price¥8,800
Amazonian green opal 0.517ct loose stone (faceted cut)
Sale price¥8,800
Amazon Green Opal 0.285ct Loose (Faceted Cut)
Sale price¥6,980
Brazilian copper rutilated quartz 1.334ct loose stone
Sale price¥9,800
Oregon Sunstone from the United States 0.292ct loose stone
Sale price¥8,800
Oregon Sunstone from the United States 1.132ct loose stone
Sale price¥15,800
Green Fluorite 38.074ct Loose
Sale price¥158,000
Synthetic Alexandrite 0.578ct loose stone
Sale price¥12,800
Synthetic Alexandrite 0.841ct loose stone
Sale price¥15,800
Synthetic Alexandrite 0.287ct loose stone
Sale price¥8,800
Brazilian Flower Rutile in Quartz 3.066ct Loose Stone
Sale price¥18,800
Brazilian Flower Rutile in Quartz 3.312ct Loose Stone
Sale price¥15,800
Tanzanite from Tanzania 0.491ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.466ct loose stone
Sale price¥8,800
Sri Lankan Moonstone 1.959ct Loose
Sale price¥12,800
Sri Lankan Moonstone 0.561ct Loose
Sale price¥6,980
Nigerian Yellow Beryl (Heliodor) 4mm/0.188ct Loose Stone
Sale price¥3,980
Brazilian Tourmaline (untreated) 5.120ct loose stone
Sale price¥39,800
Brazilian Yellow Beryl 11.411ct Loose Stone, Japan-Germany Exchange
Sale price¥25,800
South African Rhodochrosite 0.990ct Loose Stone by Nikkei
Sale price¥128,000
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.